The single invention of the computer _______ many new professions. [ ]A.

题型：同步题难度：来源：

The single invention of the computer _______ many new professions. [ ]

A. gave a birth to
B. gave births to
C. gave birth to
D. gave birth for

答案

举一反三

The doctor told me that I would recover from my illness if I ______ a healthy diet.[     ]
A. got through
B. fit in
C. stuck to
D. kept up

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_______ cars when you cross the busy street. Which of the following is not OK? [ ]

A. Watch out for
B. Look out for
C. Watch over
D. Be careful of

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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

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---My goodness! I failed again in the computer test.
---________. The world is not at an end. [ ]

A. Look up
B. Pick up
C. Cheer up
D. Keep up

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If the sun’s rays were entirely _______, there would be dramatic changes in the climate on the earth, and the result could be disastrous to the human race.    [     ]
A. covered out
B. broken out
C. blocked out
D. left out

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