10层以及10层以上或房屋高度超过（）m的住宅建筑属于高层建筑。_爱下问搜题

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问题单项选择题

10层以及10层以上或房屋高度超过（）m的住宅建筑属于高层建筑。

A.18

B.21

C.24

D.28

答案

参考答案：B

选择题

— The windows must have taken you quite a long time that day.
— Right. They ____ for weeks.

A. haven't been cleaned
B. hadn't been cleaned
C. didn't clean
D. haven't cleaned

单项选择题 B型题

口腔黏膜下纤维性变临床特点（）

A.黏膜纤维条索损害

B.黏膜白色斑块损害

C.黏膜白色网状、树枝状损害

D.黏膜红色斑块损害

E.黏膜大疱损害