以下为细胞增殖周期特异性的抗肿瘤药是()
A.环磷酰胺
B.氟尿嘧啶
C.塞替哌
D.阿霉素
E.氮芥
参考答案:B
某市欲了解糖尿病在该地区的危害状况,现对该市常住人口进行糖尿病患病率调查,宜选用哪种调查方法()
A.普查
B.抽样调查
C.典型病例调查
D.住院病例调查
E.个案调查
根据句意及所给首字母提示,完成下列单词拼写。
1. — How often does he go to the movies?
— T_____ a month.
2. It takes me only ten m_____ to get to school from home.
3. — Where are you doing the day after t_____?
— I'm staying at home.
4. — What are you doing on Sunday?
— I'm fishing with my uncle the w_____ day.
5. I can't help you do your homework because I have tennis t_____.