单项选择题

Too much _______ to X-rays can cause skin bums, cancer or other damage to the body.

A．exposure
B．disclosure
C．contact
D．exhibition
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单项选择题
Some of us find it difficult to think in imaginative and flexible ways because ofour _______ pattern of approaching problems.
A．set
B．common
C．popular
D．hard
单项选择题
Supposing you were asked to study a second foreign language _______
A．what your choice will be
B．what would be your choice
C．what will be your choice
D．what your choice would be
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