检修天车时,检修人员随身携带的照明装置,其工作电压必须是不超过()V的安全电压。
参考答案:36
—My family usually holds a big party for my birthday, but I want to try a different way this year.
— .[ ]
A. Go ahead.
B. Come along!
C. Like what?
D. So what?
气陷的病机是
A.元气耗损,脏腑功能衰退B.气机不畅,脏腑经络功能障碍C.气机失常,脏腑之气逆上D.气虚升举无力,脏腑位置下移