科学家从烟草花叶病毒(TMV)中分离出a、b两个不同品系,它们感染植物产生的病斑形态不同。下列4组实验(见下表)中,不可能出现的结果是 <table style="BORDER-COLLAPSE: collapse; MARGIN-LEFT: 6.75pt; MARGIN-RIGHT: 6.75pt; mso-table-layout-alt: fixed; mso-table-lspace: 9.0pt; mso-table-rspace: 9.0pt; mso-table-anchor-vertical: paragraph; mso-table-anchor-horizontal: margin; mso-table-left: left; mso-table-top: -.7pt; mso-padding-alt: 0cm 0cm 0cm 0cm" border="0" cellspacing="0" cellpadding="0" align="left" _dj="MsoNormalTable"><tbody><tr style="HEIGHT: 19.9pt; mso-yfti-irow: 0; mso-yfti-firstrow: yes"><td style="BORDER-BOTTOM: medium none; BORDER-LEFT: windowtext 1.5pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 29.05pt; PADDING-RIGHT: 0cm; HEIGHT: 19.9pt; BORDER-TOP: windowtext 1.5pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm" valign="top" width="39">实验</td><td style="BORDER-BOTTOM: medium none; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 291.95pt; PADDING-RIGHT: 0cm; HEIGHT: 19.9pt; BORDER-TOP: windowtext 1.5pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt" valign="top" width="389"> </td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 95.8pt; PADDING-RIGHT: 0cm; HEIGHT: 19.9pt; BORDER-TOP: windowtext 1.5pt solid; BORDER-RIGHT: windowtext 1.5pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt" valign="top" width="128" colspan="2">实验结果</td></tr><tr style="HEIGHT: 27.05pt; mso-yfti-irow: 1"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1.5pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 29.05pt; PADDING-RIGHT: 0cm; HEIGHT: 27.05pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm" valign="top" width="39">编号</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 291.95pt; PADDING-RIGHT: 0cm; HEIGHT: 27.05pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt" valign="top" width="389">实验过程</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 26.6pt; PADDING-RIGHT: 0cm; HEIGHT: 27.05pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="35">病斑类型</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 69.2pt; PADDING-RIGHT: 0cm; HEIGHT: 27.05pt; BORDER-TOP: windowtext 1pt solid; BORDER-RIGHT: windowtext 1.5pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt" valign="top" width="92">病斑中分离出的病毒类型</td></tr><tr style="HEIGHT: 10.55pt; mso-yfti-irow: 2"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1.5pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 29.05pt; PADDING-RIGHT: 0cm; HEIGHT: 10.55pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="39">①</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 291.95pt; PADDING-RIGHT: 0cm; HEIGHT: 10.55pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="389">a型TMV斗感染植物</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 26.6pt; PADDING-RIGHT: 0cm; HEIGHT: 10.55pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="35">a型</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 69.2pt; PADDING-RIGHT: 0cm; HEIGHT: 10.55pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1.5pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="92">a型</td></tr><tr style="HEIGHT: 15.7pt; mso-yfti-irow: 3"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1.5pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 29.05pt; PADDING-RIGHT: 0cm; HEIGHT: 15.7pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="39">②</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 291.95pt; PADDING-RIGHT: 0cm; HEIGHT: 15.7pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="389">b型TMV呻感染植物</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 26.6pt; PADDING-RIGHT: 0cm; HEIGHT: 15.7pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="35">b型</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 69.2pt; PADDING-RIGHT: 0cm; HEIGHT: 15.7pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1.5pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="92">b型</td></tr><tr style="HEIGHT: 13.25pt; mso-yfti-irow: 4"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1.5pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 29.05pt; PADDING-RIGHT: 0cm; HEIGHT: 13.25pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="39">③</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 291.95pt; PADDING-RIGHT: 0cm; HEIGHT: 13.25pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="389">组合病毒(a型TMV的蛋白质+b型TMV的RNA) 感染植物</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 26.6pt; PADDING-RIGHT: 0cm; HEIGHT: 13.25pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="35">b型</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 69.2pt; PADDING-RIGHT: 0cm; HEIGHT: 13.25pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1.5pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="92">a型</td></tr><tr style="HEIGHT: 14.7pt; mso-yfti-irow: 5; mso-yfti-lastrow: yes"><td style="BORDER-BOTTOM: windowtext 1.5pt solid; BORDER-LEFT: windowtext 1.5pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 29.05pt; PADDING-RIGHT: 0cm; HEIGHT: 14.7pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="39">④</td><td style="BORDER-BOTTOM: windowtext 1.5pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 291.95pt; PADDING-RIGHT: 0cm; HEIGHT: 14.7pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="389">组合病毒(b型TMV的蛋白质+a型TMV的RNA) 感染植物</td><td style="BORDER-BOTTOM: windowtext 1.5pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 26.6pt; PADDING-RIGHT: 0cm; HEIGHT: 14.7pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="35">a型</td><td style="BORDER-BOTTOM: windowtext 1.5pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 69.2pt; PADDING-RIGHT: 0cm; HEIGHT: 14.7pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1.5pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="92">a型</td></tr></tbody></table>
A.实验①
B.实验②
C.实验③
D.实验④
试卷相关题目
- 1已知A与a、B与b、C与C 3对等位基因自由组合,基因型分别为AaBbCc、AabbCc的两个体进行杂交。下列关于杂交后代的推测,正确的是
A.表现型有8种,AaBbCc个体的比例为1/16
B.表现型有4种,aaBbcc个体的比例为1/16
C.表现型有8种,Aabbcc个体的比例为1/8
D.表现型有8种,aaBbCc个体的比例为1/16
开始考试点击查看答案 - 2下列有关植物激素调节的叙述,正确的是①可利用适宜浓度的赤霉素促进细胞伸长,使植物增高②在植物组织培养中生长素和细胞分裂素的不同配比会影响组织分化③使同种植物的扦插枝条产生相同生根效果的2,4-D浓度相同④在太空失重状态下植物激素不能进行极性运输,根失去了向地生长的特性
A.①②
B.③④
C.①③
D.②④
开始考试点击查看答案 - 3下列关于哺乳动物胚胎发育和胚胎工程的叙述,正确的是
A.卵裂期胚胎中细胞数目和有机物总量在不断增加
B.胚胎分割时需将原肠胚的内细胞团均等分割
C.胚胎干细胞具有细胞核大、核仁小和蛋白质合成旺盛等特点
D.胚胎干细胞是一类未分化细胞,可从早期胚胎中分离获取
开始考试点击查看答案 - 4下列有关孟德尔豌豆杂交实验的叙述,正确的是
A.孟德尔在豌豆开花时进行去雄和授粉,实现亲本的杂交
B.孟德尔研究豌豆花的构造,但元需考虑雌蕊、雄蕊的发育程度
C.孟德尔根据亲本中不同个体表现型来判断亲本是否纯合
D.孟德尔利用了豌豆白花传粉、闭花受粉的特性
开始考试点击查看答案 - 5下列有关细胞生命活动的叙述,正确的是
A.分裂期的细胞不进行DNA复制和蛋白质合成
B.免疫系统中的记忆细胞既有分化潜能又有自我更新能力
C.凋亡细胞内的基因表达都下降,酶活性减弱
D.原癌基因突变促使细胞癌变,抑癌基因突变抑制细胞癌变
开始考试点击查看答案 - 6细胞作为生命活动的基本单位,其结构和功能高度统一。下列有关叙述正确的是①卵细胞体积较大有利于和周围环境进行物质交换,为胚胎早期发育提供所需养料②哺乳动物成熟的红细胞表面积与体积之比相对较大,有利于提高气体交换效率③小肠绒毛上皮细胞内有大量的线粒体,有助于物质运输的能量供应④哺乳动物成熟精子中细胞质较少,有利于精子运动
A.①②③
B.②③④
C.①③④
D.①②④
开始考试点击查看答案 - 7对性腺组织细胞进行荧光标记,等位基因A、a都被标记为黄色,等位基因B、b都被标记为绿色,在荧光显微镜下观察处于四分体时期的细胞。下列有关推测合理的是
A.若这2对基因在1对同源染色体上,则有1个四分体中出现2个黄色、2个绿色荧光点
B.若这2对基因在1对同源染色体上,则有1个四分体中出现4个黄色、4个绿色荧光点
C.若这2对基因在2对同源染色体上,则有1个四分体中出现2个黄色、2个绿色荧光点
D.若这2对基因在2对同源染色体上,则有1个四分体中出现4个黄色、4个绿色荧光点
开始考试点击查看答案 - 8下列4种现象中,不适宜用生态系统中能量流动规律进行合理分析的是
A.虎等大型肉食动物容易成为濒危物种
B.蓝藻易在富营养化水体中爆发
C.饲养牛、羊等动物,成本低、产量高
D.巨大的蓝鲸以微小的浮游动物为食
开始考试点击查看答案 - 9下列关于人类遗传病的叙述,错误的是①一个家族仅一代人中出现过的疾病不是遗传病②一个家族几代人中都出现过的疾病是遗传病③携带遗传病基因的个体会患遗传病④不携带遗传病基因的个体不会患遗传病
A.①②
B.③④
C.①②③
D.①②③④
开始考试点击查看答案 - 10某小组进行“探究培养液中酵母菌种群数量的动态变化”实验时,同样实验条件下分别在4个试管中进行培养(见下表),均获得了“s”型增长曲线。根据实验结果判断,下列说法错误的是 <table style="BORDER-COLLAPSE: collapse; MARGIN-LEFT: 0.75pt; mso-table-layout-alt: fixed; mso-padding-alt: 0cm 0cm 0cm 0cm" border="0" cellspacing="0" cellpadding="0" _dj="MsoNormalTable"><tbody><tr style="HEIGHT: 21pt; mso-yfti-irow: 0; mso-yfti-firstrow: yes"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1.5pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 154.7pt; PADDING-RIGHT: 0cm; HEIGHT: 21pt; BORDER-TOP: windowtext 1.5pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm" valign="top" width="206"> 试管号</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 45.1pt; PADDING-RIGHT: 0cm; HEIGHT: 21pt; BORDER-TOP: windowtext 1.5pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt" valign="top" width="60"> I</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 45.1pt; PADDING-RIGHT: 0cm; HEIGHT: 21pt; BORDER-TOP: windowtext 1.5pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt" valign="top" width="60"> Ⅱ</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 45.1pt; PADDING-RIGHT: 0cm; HEIGHT: 21pt; BORDER-TOP: windowtext 1.5pt solid; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt" valign="top" width="60"> Ⅲ</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 45.45pt; PADDING-RIGHT: 0cm; HEIGHT: 21pt; BORDER-TOP: windowtext 1.5pt solid; BORDER-RIGHT: windowtext 1.5pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt" valign="top" width="61"> Ⅳ</td></tr><tr style="HEIGHT: 19.7pt; mso-yfti-irow: 1"><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: windowtext 1.5pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 154.7pt; PADDING-RIGHT: 0cm; HEIGHT: 19.7pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="206"> 培养液体积(mL)</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 45.1pt; PADDING-RIGHT: 0cm; HEIGHT: 19.7pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="60"> 10</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 45.1pt; PADDING-RIGHT: 0cm; HEIGHT: 19.7pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="60"> 5</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 45.1pt; PADDING-RIGHT: 0cm; HEIGHT: 19.7pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="60"> 10</td><td style="BORDER-BOTTOM: windowtext 1pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 45.45pt; PADDING-RIGHT: 0cm; HEIGHT: 19.7pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1.5pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="61"> 5</td></tr><tr style="HEIGHT: 12.85pt; mso-yfti-irow: 2; mso-yfti-lastrow: yes"><td style="BORDER-BOTTOM: windowtext 1.5pt solid; BORDER-LEFT: windowtext 1.5pt solid; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 154.7pt; PADDING-RIGHT: 0cm; HEIGHT: 12.85pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="206"> 起始酵母菌数(103个)</td><td style="BORDER-BOTTOM: windowtext 1.5pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 45.1pt; PADDING-RIGHT: 0cm; HEIGHT: 12.85pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="60"> 10</td><td style="BORDER-BOTTOM: windowtext 1.5pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 45.1pt; PADDING-RIGHT: 0cm; HEIGHT: 12.85pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="60"> 5</td><td style="BORDER-BOTTOM: windowtext 1.5pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 45.1pt; PADDING-RIGHT: 0cm; HEIGHT: 12.85pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="60"> 5</td><td style="BORDER-BOTTOM: windowtext 1.5pt solid; BORDER-LEFT: medium none; PADDING-BOTTOM: 0cm; PADDING-LEFT: 0cm; WIDTH: 45.45pt; PADDING-RIGHT: 0cm; HEIGHT: 12.85pt; BORDER-TOP: medium none; BORDER-RIGHT: windowtext 1.5pt solid; PADDING-TOP: 0cm; mso-border-left-alt: solid windowtext 1.0pt; mso-border-top-alt: solid windowtext 1.0pt" valign="top" width="61"> 10</td></tr></tbody></table>
A.4个试管内的种群初始阶段都经历了“J”型增长
B.4个试管内的种群同时达到K值
C.试管Ⅲ内种群的K值与试管Ⅱ不同
D.试管Ⅳ内的种群数量先于试管Ⅱ开始下降
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