肛裂切除术常用体位是( )
A.仰卧位B.侧卧位C.俯卧位D.膀胱截石位E.半坐卧位
参考答案:D
连词成句。
1. the weekend on do What do you (?)
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2. I breakfast eat 7: 00 in the morning at (.)
3. do best season like Which you (?)
4. favourite What's season your (?)
5. I sleep time a long can Because (.)
某组道岔在定位状态,控制台上定位表示灯绿灯点亮,若向反位单独操纵该道岔,控制台上定位表示灯绿灯熄灭,电流表指针不动,过一会儿定位表示灯绿灯又点亮,这是因为该组道岔()。
A.1DQJ因故不能吸起
B.1DQJ↑,2DQJ因故不能转极
C.1DQJ↑,2DQJ转极,转辙机电路故障