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【多选题】
Spark的主要特点包括A.
通用性
B.
运行速度快
C.
容易使用
D.
运行模式多样
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反馈参考答案：
举一反三
【单选题】How many hours do the researchers advise people to spend doing weekly physical exercises?
A.
one hour.
B.
two hours.
C.
one and half.
D.
two and half.
【单选题】--- How _____ hours do you sleep a day? --- Well, about eight hours. But how _____ sleep do we students really need?
A.
many; many
B.
much; much
C.
much; many
D.
many; much
【单选题】Listen to the dialogue about study hours. Q: How many hours do students study in South Korea?
A.
6 hours.
B.
10 hours.
C.
9 hours .
D.
15 hours.
【单选题】How many hours do the researchers advise people to spend doing weekly physical exercises?
A.
One hour.
B.
Two hours.
C.
One and half.
D.
Two and half.
【单选题】听力原文：W: What sort of hours do you work, Steve? M: Well I have to work very long hours, about eleven hours a day. W: What time do you start? M: I work 9 to 3. Then I start again at 5:30 and work until ...
A.
It allows him to make a lot of friends.
B.
It requires him to work long hours.
C.
It enables him to apply theory to practice.
D.
It helps him understand people better.
【单选题】______hours do you exercise every week ? Nine hours.
A.
How many
B.
How often
C.
How much
D.
How long
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