单项选择题

以下( )是jav

A.io包中的一个兼有输入输出功能的类。
A.Object
B.Serializable
C.RandomaccessFile
D.java.io中不存在这样的类
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单项选择题
听力原文:W: There is a limit of three books each person. Do you stir want to have them?M: Fine, thanks. I'll be certain to return them on time.Q: Where did this conversation take place?(19)A.In a library.B.In a restaurant.C.In a book shop.D.In a department store.
A.
Q:
B.In
C.
B.In
D.
C.In
E.
D.In
F.
单项选择题
听力原文:W: Simon asked if he could get a ride with us to the beach.M: Well, I'll speak to him. Whether or nor we'll have roan is not clear.Q: What does the man mean?(14)A.He is not sure there will be space for Simon.B.He wants to make sure that the weather is clear.C.He does not know if they can get a room.D.He will ask Simon what he wants.
A.
M:
B.
Q:
C.He
D.
B.He
E.
C.He
F.
D.He
G.
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