下列影响动物实验结果的因素哪些属于实验技术方面的因素（）。
A.温、湿度
B.动物选择
C.手术技巧
D.给药方法
参考答案：B, C, D
小题1:The above is__________．
A．a poster from a club
B．an advertisement for films
C．a note to parents
D．an introduction of a cinema小题2:Which of the following is allowed to the cinema alone in the club?
A．A 2-year-old baby
B．A 10-year-old student
C．A 30-year-old parent
D．A 19-year-old pupil小题3:________on the first Saturday of July．
A．Kids’Club will start at 10：30
B．The kids will see TWO BROTHERS
C．There will be no Kids’Club
D．The kids will have creative activities
注册建造师继续教育分为必修课和选修课，在每一个注册有效期内各为( )学时。
A．30
B．40
C．50
D．60
