问答题

Productivity________________ (对于一个国家的繁荣来说起着非常重要的作用).

【参考答案】

plays a very important role for the prosperity of a nation
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问答题
I wish__________(我昨晚和你去看电影了)．
单项选择题
It can be inferred from the passage that the real danger comes from _________.
A．the asbestos dust that people take in
B．the contact of the worker’’s skin with asbestos particles
C．the inferior quality of the asbestos itself
D．the excessive use of man-made asbestos material.
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