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
