月经量多或经期延长但周期基本正常,应首先考虑()
A.子宫内膜癌
B.子宫颈癌
C.子宫肌瘤
D.无排卵性功能失调性子宫出血
E.宫颈息肉
参考答案:C
Whale beachings(搁浅)_______ be caused by factors such as illness, or disorientation(迷失方向)caused by extra noise in the oceans, ______ shipping or oil and gas drilling.
A.might; from
B.will; by
C.should; in
D.shall; on
保险在一定条件下分担了个别单位和个人所不能承担的风险,从而形成的保险特征是()。
A.经济性
B.商品性
C.互助性
D.科学性