子宫肌瘤引起月经过多,经期延长因素有()
A.子宫内膜面积增大
B.子宫内膜增生过长
C.肌瘤影响子宫收缩
D.黏膜下肌瘤合并感染
E.浆膜下肌瘤蒂扭转
参考答案:A, B, C, D
严禁供电线路直接拴挂在设备、井架、绷绳、罐等()上。
The short-answer test is a kind of____between the composition and selection types.
A.mixture
B.collection
C.compound
D.compromise