Someone didn't pass his exam and is too upset to do anything, you'd better say to him:   [ ]

A. It's less of a problem to be poor than to be dishonest.

B. Don't let yesterday use up too much of today.

C. Tell me and I'll forget. Show me and I may not remember. Let me try and I'll understand.

D. You can't wake a person who is pretending to be asleep.

下列对于化疗药物不良反应的描述不正确的是（）

A.阿霉素可引起骨髓抑制，心脏损害

B.环磷酰胺可引起脱发及出血性膀胱炎

C.阿糖胞苷可引起口腔溃疡，胃肠道反应

D.长春新碱可引起心肌及心脏传导损害

E.甲氨蝶呤可引起口腔黏膜溃疡