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【简答题】
面向对象程序设计有四个主要特点,即抽象、封装、 ____ 和 __ _ 。
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知识点:
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【单选题】David did not tell his wife that he had been fired, but he _________.
A.
would not
B.
had to
C.
should have
D.
might have to
【简答题】杂质半导体中多数载数量浓度取决于什么?少数载流子数量取决于什么?
【简答题】David wishes when he was in university ____________(自己学的是商业而不是历史).
【单选题】配电装置中,电气设备的网状遮栏高度不低于()m,底部离地不应超过0.1m。
A.
1.3
B.
1.7
C.
1.5
【简答题】配电装置中,电气设备的网状遮栏高度不低于()m,底部离地不应超过0.1m。 A、1.3 B、1.5 C、1.7
【单选题】Happy birthday, David! Here is a card for you with our best wishes.
A.
I don't feel very weel.
B.
Wow, it's very nice. Thank you very much.
C.
It's a nice day.
【单选题】配电装置中,电气设备的网状遮栏高度不低于( )m,底部离地不应超过0.1m。(1分)
A.
1.3
B.
1.5
C.
1.7
【单选题】配电装置中,电气设备的网状遮栏高度不低于()m,底部离地不应超过 0.1m
A.
1.3
B.
1.5
C.
1.7
【单选题】遮栏高度不低于()m,底部离地不应超过0.1m。
A.
1.3
B.
1.5
C.
1.7
【判断题】David wishes Julia to work longer.
A.
正确
B.
错误
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