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文中（79）处答案为__________。
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单选题：文中（79）处答案为__________。
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When we are exercising, our heart is responsible for________
When we are exercising, our heart is responsible for_________ to the working mus
Why is only a small amount of ocean water desalinated in the
Why is only a small amount of ocean water desalinated in the world?
会计科目的设置原则是（ ）。
会计科目的设置原则是（ ）。
Some assume that Coca-Cola enjoys such a success because __
Some assume that Coca-Cola enjoys such a success because __
It is suggested in this passage that gunftres be controlled
It is suggested in this passage that gunftres be controlled by ___