The woman looks very young, but she is ________ 40. [ ]
A. on
B. in
C. over
D. under
答案:C
测井绞车一般由()提供动力。
A、井下仪器
B、发电机
C、汽车发动机
D、滚筒设备
辨证分型为
A.血瘀
B.血虚
C.血热
D.寒湿
E.湿热