葡萄胎刮宫术后,黄素囊肿消退常需要多长时间()
A.1~2周
B.4~5周
C.6个月
D.2~4个月
E.8周
参考答案:D
He never hides his real opinions towards others. _____, he is a person with a frank personality.
A.In a word
B.In particular
C.In detail
D.In other words
保证互助是风险管理方式的一种,该方式属于()
A.避免
B.自留
C.转移
D.抑制