在同一总体内随机抽取两个样本,要判断相应的总体均数是否相等
A.必须作成组t检验
B.必须作方差分析
C.必须先检验两样本方差是否齐后,作成组t检验
D.必须先检验两样本方差是否齐后,作方差分析
E.没必要作统计检验
第1题
听力原文:M: Why don't you wait here a few minutes and I'll get my car?
W: No, thank you. I'd better take the bus home.
What does the man want to do?
A.He wants to look for his car.
B.He wants to give the woman a lift.
C.He wants to take the bus.
第2题
Just wait for a moment! I'll get the car ().
A、starting
B、start
C、started
第3题
— I left my umbrella in my room. Wait while I go back to get it.
— ________ .
A.Don’t be afraid, it will be fine
B.Never mind, the weather will be OK
C.Don’t bother, it will clear up by noon
D.No problem, you can go
第4题
Woman: I'll wait for you here while you go back and look for them. Here, you'll need my keys. My office is locked.
Man: OK, thanks. Hold onto my briefcase for me, and don't wait here. I'll catch up with you at the car. It will only take me a minute.
Woman: All right. I'm parked right across the street, in front of the post office.
Where did the man leave his glasses?
A.On his desk.
B.In the woman's office.
C.In his briefcase.
D.In the car.
第5题
听力原文:W: I left my raincoat in my room. Wait while I go back to get it.
M: Don't bother. The weather report said it would clear up by noon.
Q: What does the man advise the woman to do?
(16)
A.To clean up her room.
B.To get her report back.
C.Not to wait for him.
D.Not to worry about her raincoat.
第6题
听力原文:M: Excuse me, can I park my car here?
W: If you do that, you'll block my way.
What does the woman mean?
A.She agrees the man to park his car here.
B.She wants to park her car here.
C.She doesn't allow the man to park his car here.
第7题
听力原文:W: I left my umbrella in my room. Wait while I go back to get it.
M: Don't bother. The weather report said it would clear up by noon.
Q: What does the man advise the woman to do?
(14)
A.Clean up her room.
B.Get the report back.
C.Not wait for him.
D.Not bother to get the umbrella.
第8题
第9题
听力原文:W: I'll go to change my clothes as soon as I finish typing my essay.
M: Okey, Sally. Then we'll take my car and go out for a meal.
Q: What is Sally doing now?
(19)
A.Changing her clothes.
B.Driving her car.
C.Having a meal.
D.Typing an essay.
第10题
听力原文:W: I'll go to change my clothes as soon as I finish typing my essay.
M: Okey, Sally. Then we'll take my car and go out for a meal.
Q: What is Sally doing now?
(19)
A.Changing her clothes.
B.Driving her car.
C.Having a meal.
D.Typing an essay.
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