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问题
单项选择题
帕金森病的主要生化病理特征是()
A.5-HT减少
B.DA减少
C.NE减少
D.ACh减少
E.GABA减少
答案
参考答案:
B
选择题
The countryside gives us peace and quiet, which is _____ we can't enjoy living in the city.
A. that
B. what
C. why
D. where
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