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幼苗
共回答了18个问题采纳率:94.4% 举报
主干:What is a study.(肯定句)
What is needed in the case of noise 是一个what引导的从句,谓语是noise后面的is,宾语是study,是一个什么样的study呢?a study of large numbers of people living noisy conditions 这里living noisy conditions是伴随状语.
to discover whether they are mentally ill more often than other people.则是目的状语.
明白了吗?
补充:What is needed in the case of noise是指代需要对噪音所做的事情.
1年前
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