梯级调节

Wanted: an English tutor (家教)

Do you like kids? Are you outgoing (开朗的)? Do you have three years’ experience (经验) as (作为) an English teacher? Do you have free time on Saturday and Sunday? We need a woman teacher for our daughter. She is twelve and she is not good at English.

For the job, you will.

Teach from 3:00pm to 6:00 pm.

Teach our daughter English.

Tell her stories (故事) in English.

You will work at our house. We live in Beihai Road, Garden District. The pay (报酬) is ￥30 each hour.

If you want to know more information (信息), please call Mrs Yang at 82569876.

小题1:Mrs Yang wants          for her daughter.

A．a babysitter

B．a good book

C．an English tutor

D．a math tutor小题2:If you are the tutor, you must teach the kid for          on Saturday.

A．a day

B．two hours

C．the whole afternoon

D．three hours小题3:What is not a part of the job?

A．Cooking for the kid.

B．Working at the kid’s house.

C．Being good with the kid.

D．Telling English stories to the kid.小题4:If you want to be the tutor, you need to         .

①be beautiful

②have three years’ teaching experience

③have time on weekends

④be a woman teacher

A．①②

B．②③

C．②③④

D．①②③小题5:Which is NOT true?

A．The tutor must teach the kid on weekends.

B．The kid is good at English.

C．The tutor can speak English.

D．The tutor can get ￥Y360 if she teaches the kid for two weeks.

配对设计t检验是以上哪种设计方法的特殊情况

A．单因素方差分析
B．配伍组方差分析
C．回归相关分析
D．四格表X2检验
E．t检验

某镇共有52500人，全人群脑卒中的发病率为1.2%，其中14300名吸烟者中有310人发生脑卒中。

该人群中吸烟导致脑卒中发生的相对危险度是（）。

A.1.8

B.2.6

C.0.6

D.0.4

E.1.4

微波遇到障碍物后，能被吸收，但不能被反射和折射。

塑料材料的蠕变性能越好尺寸（）越差。

A、精度

B、形状

C、稳定性

D、几何