气溶胶中粒径（）μm的颗粒，称为飘尘。A.>10 B.15 D._爱下问搜题

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问题单项选择题

气溶胶中粒径（）μm的颗粒，称为飘尘。

A.>10

B.<5

C.>15

D.<10

答案

参考答案：D

选择题

There's _______ in today's newspaper. You'd better stop to read it. [ ]

A. nothing interesting

B. anything interesting

C. something interesting

D. interesting something

单项选择题 B1型题

委中穴的主治病证是（）

A.滞产

B.痛经

C.丹毒

D.呃逆

E.便秘