在油区道路上行驶的车辆必须遵守哪些规定？

—Flora has made much progress these days.

—        , and ___________.

A．So has she; so you have

B．So she has; so have you

C．So has she; so have you

D．So she has; so you have

尤善祛上半身风湿的药是()

A．羌活

B．白芷

C．藁本

D．独活

E．细辛

我国宪法规定：“国家尊重和保障 * * 。”这充分说明了我国的人民民主具有[ ]

A、广泛性

B、平等性

C、真实性

D、统一性

Don't ______ to spring-clean the whole house just because my mother is coming---there's no need to do that.

A．undertake

B．attempt

C．bother

D．hesitate

可燃液体表面上的蒸汽与空气混合后遇到明火，发生一闪即灭的现象，称为（）。

A.着火

B.闪燃

C.自燃