填空题

What has to be imported

【参考答案】

Heavy machinery。
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填空题
A few people who do not agree with us about the matter haven’t realized the (important) ______ of the matter.
单项选择题
A．On the first floor.B．On the second floor.C．On the third floor.D．On the fourth floor.
A．On the first floor.
B．On the second floor.
C．On the third floor.
D．On the fourth floor.
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