How ______ disasters _____ there in that area in a year ?

A． much, is

B．much , are

C． many , is

D．many , are

29岁，女性，闭经3个月，6个月前行人工流产术，术后月经规则，经量少，闭经后有周期性腹痛，检查，宫颈光滑，宫体稍大，附件阴性，尿妊娠试验阴性，应考虑诊断为

A．闭经

B．人工流产后月经失调

C．过期流产

D．宫颈粘连

E．痛经