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【单选题】
Radio and television are quite useful because you can __________ ．A． see what is haA.
27． Radio and television are quite useful because you can __________ ． A． see what is happening in the world
B.
hear what is happening to the world
C.
know what the world is like
D.
see what the people on the earth are doing'
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举一反三
【单选题】–Don’t put the waste on the ground, young man. －－Oh, I’m sorry. I ____ the dustbin there.A．didn’t
A.
10．–Don’t put the waste on the ground, young man. --Oh, I’m sorry. I ____ the dustbin there. A．didn’t see
B.
hadn’t seen
C.
can’t see
D.
wasn’t seeing
【单选题】— Why don't you take the T-shirt, Linda? — I have only $10. I can't ____ it. [ ]
A.
borrow
B.
afford
C.
sell
D.
bring
【单选题】I don’t mind picking up your things from the store. ______, the walk will do me good.
A.
Sooner or latr
B.
Still
C.
In time
D.
Besides
【单选题】I don't mind picking up your things from the store. _______,the walk will do me good.
A.
Sooner or later
B.
Still
C.
In time
D.
Besides
【单选题】下列关于纯虚函数与抽象类的描述巾，错误的是（ ）。
A.
纯虚函数是一种特殊的虚函数，它没有具体的实现
B.
抽象类是指具有纯虚函数的类
C.
一个基类声明了纯虚函数，该基类的派生类一定不是抽象类
D.
抽象类只能作为基类来使用，其纯虚函数的实现由派生类给出
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