The task is so hard that he_______ finish it on time.[ ]

A.shouldn't

B.needn't

C.can't

D.mustn't

患者女性，32岁，63d前出现高热，寒战，腰痛，尿频，肉眼血尿，查体：双肾区叩痛，该患者的诊断是

A． * * 炎

B．肾盂肾炎

C．肾小球肾炎

D．肾囊肿

E．肾癌