属于烷化剂 ()
A.阿糖胞苷
B.长春新碱
C.环磷酰胺
D.维A酸
E.门冬酰胺酶
参考答案:C
小儿常见呕吐,泄泻的原因是
A.肾常不足 B.肝常有余 C.心常有余 D.肺常不足 E.脾常不足
They are _____ in Shenzhen now, I think they must enjoy themselves.[ ]
A. on holiday
B. on duty
C. on business
D. on watch