已知△ABC三顶点坐标A(1,2),B(3,6),C(5,2),M为AB中点,N

发布时间：2017-04-18 14:58 │ 来源：www.tikuol.com

题型：选择题

问题：

已知△ABC三顶点坐标A(1,2),B(3,6),C(5,2),M为AB中点,N为AC中点,则直线MN的方程为(　　)

A．2x+y-8=0

B．2x-y+8=0

C．2x+y-12=0

D．2x-y-12=0

考点：直线的方程

题型：选择题

完形填空。

      Hello!      1   name is Li Hong. I     2     a boy. Bill     3     Bob are my friends. Bill     4     a great
sports 5    . He has three soccer balls, two volleyballs and two    6     rackets. His      7     are under
the bed. His volleyballs are      8 the case. He doesn't play sports. But I play sports every day. I play     9     basketball,volleyball and ping-pong. But I        10   play soccer. It's boring.

( )1. A. Your
( )2. A. am
( )3. A. and
( )4. A. be
( )5. A. collection
( )6. A.ping-pong
( )7. A. ping-pong balls
( )8. A. in
( )9. A. a
( )10.A. aren't

B. My
B.is
B. but
B. have
B. number
B.baseball
B. soccer balls
B. to
B. the
B. isn't

C. His
C. are
C. of
C. has
C. notebook
C.tennis
C. basketballs
C. at
C./
C.don't

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医院感染的病原体中最常见的是（）

A.病毒

B.衣原体

C.细菌

D.真菌

E.弓形虫

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题型：选择题

煤矿事故中有下列( )情形的，给予警告，可以并处3万元以上15万元以下的罚款。

A．不按规定及时、如实报告煤矿事故的

B．采取威胁、强迫等手段迫使遇难人员家属同意私下了结的

C．阻碍、干涉事故调查的

D．伪造、故意破坏煤矿事故现场的

E．拒绝接受调查取证、提供有关情况和资料的

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题型：选择题

在Excel2000单元格中输入的日期或时间正确的是（）

A．12:00a

B．98-13-8

C．6,sun

D．23:59

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题型：选择题

My father did not go to New York; the doctor suggested that he ______ there.
A. not to go B. not go
C. hadn’t gone D. wouldn’t go

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