可能引起母体凝血机制障碍的流产是
A.先兆流产B.不全流产C.稽留流产D.完全流产E.习惯性流产
参考答案:C
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A.farther
B.further
C.another
D.many
采用砂浆剪切法测定砌体工程砂浆强度时,砂浆片试件一个测区的墙面尺寸宜为()
A.0.5m³0.5m
B.0.2m³0.2m
C.0.6m³0.6m
D.0.3m³0.3m