The fiddler crab seems to darken his color according to _____.
A.time of sunrise
B.its background
C.amount of daylight
D.time of tides
试卷相关题目
- 1The alarm clock that determines the activity of certain living things is governed by _____.
A.hours of daylight
B.the time of day in their native environments
C.the moon
D.something we don't understand completely
开始考试点击查看答案 - 2In the author's judgment, the ferment going on at Harvard _____.
A.will soon be over, because times are bound to change
B.is of interest mostly to Harvard men and their friends
C.will influence future life in America
D.is a sad symbol of our general bewilderment
开始考试点击查看答案 - 3The word “sanctuary” in paragraph 3 is _____ .
A.a temple or nunnery of middle age
B.a certain place you can hide in and avoid mishaps
C.a holy place dedicated to a certain god
D.an academy for intelligent people
开始考试点击查看答案 - 4The word “paradox” in paragraph 1 is _____.
A.an abnormal condition
B.a parenthetical expression
C.a difficult puzzle
D.a self-contradiction
开始考试点击查看答案 - 5The issues in the debate on Harvard's goals are whether the universities should remain independent of our society and its problems, and whether they should _____.
A.overcome the widespread drug dependency
B.take an active part in solving society's ills
C.fight militarism
D.support our old and established institutions
开始考试点击查看答案 - 6The reported activity of the ant colony occurred in relation to _____.
A.the position of the sun
B.the day of the year
C.the temperature
D.the geographical location
开始考试点击查看答案 - 7What controls the migration of birds seems to be ______.
A.dark, cloudy days and bright, sunny days
B.direction of migration
C.time between sunrise and sunset
D.breeding habits
开始考试点击查看答案 - 8The passage implies that the osmotic pump pill is better than other pills and capsules because_____.
A.it releases medicine slowly over a long period of time
B.the coating doesn't dissolve in the stomach
C.the medicine in the pill can affect the body quickly
D.it helps to build pressure in the body
开始考试点击查看答案 - 9The way that the osmotic pump pill works is based on a process called ______.
A.cellulose
B.osmosis
C.pressure
D.synthesis
开始考试点击查看答案 - 10The passage implies that medicine in an osmotic pump pill will leave the pill when _____.
A.the pill is swallowed
B.the cellulose coating is dissolved
C.enough pressure builds up in the pill
D.the medicine is dissolved with water from the body
开始考试点击查看答案
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