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【简答题】
动手画一画，再数数 （1）过一点A能画几条直线？ （2）过两点A、B能画几条直线？ （3）已知平面上共有三个点A、B、C，过其中任意两点画直线，可画几条？ （4）已知平面上共有四个点A、B、C、D，过其中任意两点画直线，那么可画多少条直线？ （5）已知平面上共有n个点（n为不小于3的整数），其中任意三个点都不在同一直线上，那么连接任意两点，可画多少条直线？
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反馈参考答案：
举一反三
【简答题】三相异步电动机的控制电路一般分为 运转控制电路和 运转控制电路。
【单选题】Can you give us any _____ about how we can improve our English? [ ]
A.
information
B.
suggestion
C.
indication
D.
expression
【单选题】Any donation you can give will help us ________ the suffering and isolation of the homeless this New Year.
A.
lift
B.
patch
C.
comfort
D.
ease
【单选题】---Can you tell me who the woman going to the hall is? ---A famous writer ______to give us a lecture.
A.
is invited
B.
invited
C.
to invite
D.
inviting
【简答题】五、词汇:根据句意及首字母提示,补全单词(共5小题,每小题2分,计10分) 1.My iPad was broken. Can you f______ it up tomorrow? 2.Every year we have charity days to r______ money for unfortunate people. 3.The boy is so c_____ that he ca...
【单选题】We _______ if you could give us whatever information you can in this respect.
A.
should appreciate
B.
appreciate
C.
appreciate it
D.
should appreciate it
【简答题】二. 单项选择。 1.They got ______ 30 years ago. Now their children are both working in Shanghai. A. annoyed B. married C. worried D. surprised 2. ---Have you _____ all your old toys? ---Yeah. They are popu...
【简答题】试述幼儿教师应如何感知觉规律组织教育教学活动?
【单选题】Can you give us some_______about the writer?
A.
informations
B.
information
C.
piece of informations
D.
pieces information
【单选题】And can you give us a refund, please?
A.
Thanks.
B.
You are welcome.
C.
Yes, of course.
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