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【单选题】
if函数的功能是什么( )A.
四舍五入
B.
取整
C.
比较函数
D.
根据判断条件选择性输出函数
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反馈参考答案：
举一反三
【单选题】—I like big hats. ________? —Yes, I have this one here.
A.
It's five dollars
B.
Can I help you
C.
How can I do for you
D.
Do you have one
【单选题】I never dreamed of ______ such a big crowd here.
A.
there being
B.
there to be
C.
there having
D.
there to have
【单选题】Only when I got here _________ that I had made a big mistake. [ ]
A.
did I realize
B.
I realized
C.
I have realized
D.
have I realized
【单选题】当Windows7系统崩溃后,可以通过 _____ 来恢复。 A、更新驱动 B、使用之前创建的系统镜像 C、使用安装光盘重新安装 D、卸载程序
A.
更新驱动
B.
卸载程序
C.
使用安装光盘重新安装
D.
重启计算机
【单选题】— So how long have you been here? — Just a couple of days actually．I’m on a big journey, you know．I ______all the places of interest here．
A.
am visiting
B.
visited
C.
have visited
D.
will visit
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