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噪声控制首先应采取的措施为下列哪一项？（）

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当木结构处于下列何种环境时，不能保证木材避免腐朽？（）

根据听到的内容作答____. A) During the summer months. B) During the spring months. C) During the winter months. D) During the autumn months.

根据所听到的内容回答题__________ A. $50. B. $95. C. $145. D. $190.

__________ A) China is the only country to grow soybeans. B) China is the ancestral home