Be careful when you open an unknown document. It might contain the deadly virus which could entirely ______ your computer system in a minute.
A.break down
B.crash
C.block out
D.dissolve
试卷相关题目
- 1The early settlers in the jungle didn't have such advanced equipment _____ we have today to fightagainst natural disasters and many a time they _____ despair(绝望) but they survived somehow.
A.that; got close to
B.as; got near to
C.that; were close to
D.as; got close to
开始考试点击查看答案 - 2No sooner had I began to sing the English song than it was_______ by a 13-year-old girl. She sang the song so beautifully that I couldn't help asking her when she had ______ the study of English.
A.brought up; taken up
B.picked up; picked up
C.taken up; taken up
D.come up; set up
开始考试点击查看答案 - 3In case of emergency, whether knowing how to apply first aid or not really ________ in matters concerning wounds like swollen wrists, broken arms, burns, cuts, and so on.
A.makes difference
B.makes a difference
C.makes differences
D.makes different
开始考试点击查看答案 - 4—Would you like to ____ on the performances of my students? —Sorry, but I am not in the position to do so.
A.have comment on
B.make a comment on
C.say some comment about
D.raise a comment on
开始考试点击查看答案 - 5The new examination system has to be _______ in special regions before it can be applied nationwide.
A.put out
B.experimented out
C.tried out
D.taken out
开始考试点击查看答案 - 6No matter how clever a computer becomes, it can never _____ of humans, because it has to with artificial intelligence, which is made by us humans.
A.take place
B.instead of
C.take the place
D.substitute
开始考试点击查看答案 - 7Whoever ______ such a rare chance to get promoted is a fool .
A.throw out
B.throw away
C.throw off
D.throw up
开始考试点击查看答案 - 8The Spring Festival Gala(春节晚会) on CCTV has _______ many ordinary entertainers into well-known stars overnight.
A.created
B.transformed
C.made
D.produced
开始考试点击查看答案 - 9Unwilling to give up slavery, the South _____ from the Union and set up a state of their own, resulting in the American Civil War.
A.broke away
B.ran away
C.escaped away
D.cut away
开始考试点击查看答案 - 10The white man who was put in prison for trying to _____the headquarters (总部) of the ANC tried to escape but failed.
A.set up
B.break up
C.blow up
D.fire up
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