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【单选题】
系统维护主要包括( )A.
硬件维护、软件维护、数据维护
B.
硬件维护、安全维护、代码维护
C.
硬件维护、代码维护、功能完善
D.
程序测试、系统测试、安全维护
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反馈参考答案：
举一反三
【单选题】--- May I ask a favour of you? --- ______.
A.
It’s my pleasure
B.
I’ve no time
C.
Ask please
D.
Sure, go ahead
【单选题】I’ve got to go now. Something has just______ at school and I’m needed there.
A.
come to
B.
come up
C.
come in
D.
come over
【简答题】People drink in a party in order to ______.
【单选题】______, I should ask them some questions.
A.
Should they come to us
B.
If they come to us
C.
Were they come to us
D.
Had they come to us
【单选题】— Why are you so upset? What has happened? — You know, I’ve come to the point ______ I can’t stand her arguing any longer.
A.
where
B.
which
C.
whether
D.
what
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