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请选择（6）处的最佳答案。

A. On
B. In
C. From
D. Since

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指出阴邪所致疾病性质的是E．

How did the researchers test their volunteers？
A By giving everyone nasal drops containing either a cold virus or a particular flu virus.
B By giving everyone a medicine that help lessen the probability of catching cold.
C By giving everyone an injection boosting immune function.
D By investigating everyone’s characteristics, interests and hobbies.

Which of the following is NOT true of traditional university research？（）

A. it is free
B. It is profit-driven.
C. It is widely available,
D. It is curiosity-driven.

（2008，7）根据我国《宪法》规定，有权决定个别省、自治区、直辖市进入紧急状态的机关是（）。