题目内容

I tried to reason her _________ her worries, but _________ vain.

A. out, in
B. out of, in
C. off, on
D. away with, out of

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Too much _________ to X-ray can cause skin burns, cancer or other damage to the body.

A. disclosure
B. exposure
C. exhibition
D. pressure

We will sign the contract with the dealer, ________ he can promise to offer us the guarantees of the products.

A. as far as
B. even if
C. as long as
D. unless

If the pressure is not _________ immediately, there may be an explosion.

A. relieved
B. retreated
C. revealed
D. released

Though faced with great difficulties, 65-year-old Thomas would not ________ karate learning.

A. give up
B. give out
C. give back
D. give in

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