ZD6系列电动转辙机电动机安装齿轮的伸出端径向跳动不大于()。
A.0.1mm
B.0.2mm
C.0.3mm
D.0.4mm
参考答案:A
More and more high-rise buildings have been built in big cities space.
A.in search of
B.in place of
C.for lack of
D.for fear of
孕妇,28岁,G2P0,36周妊娠,重度子痫前期。摔倒3h后自觉下腹不适,有少量 * * 流血而入院。查体:宫缩30s/min,强度弱,子宫底高度33cm,软,子宫右侧有轻度局限性压痛,估计胎儿体重3000g,胎心140次/分。为确诊,应首选()
A.B超
B. * * 检查
C.肛门检查
D.放射性核素扫描
E.腹部X线摄片