34岁男性，诊断为肾病综合征，用泼尼松60mg/d治疗3个月，仍反复水肿，尿蛋白(++～+++)，下列何种说法错误

A．继续加大泼尼松用量再治疗6个月

B．该患者可能属于激素无效型

C．可加用环磷酰胺治疗

D．可试用环孢素

Under what circumstances would Bob replace him().

A.If he fell at that time.

B.If he failed the exam.

C.If he didn’t come in time.

D.If he asked in time.