在直线上截取线段AB=3cm,截取AC=5cm,则线段AB和线段AC中点间的距离

题型:解答题

问题:

在直线上截取线段AB=3cm,截取AC=5cm,则线段AB和线段AC中点间的距离。

考点:直线,线段,射线
题型:解答题

根据短文内容,完成下列各题。

     Jeff and John are good friends. They are from different countries. They are now in China. They are in

the same class. Jeff is twelve, but John is eleven. Jeff is from the U.S.A. John is from England. They both

speak English. Jeff usually goes to school on foot. John usually goes to school by subway. Mr.Yang is their

Chinese teacher. Jeff is good at Chinese. He can speak Chinese very well. But John can't. He can only speak

a little Chinese. Mr.Yang and Jeff often help him with his Chinese. 

1. Jeff is American, but John is English. (改为同义句)

    Jeff and John _____ from different _____.

2. Jeff usually goes to school on foot. (改为同义句)

    Jeff usually _____ _____ school.

3. Who can speak Chinese very well, Jeff or John?

    __________________________________________________

4. How does John usually go to school?

     __________________________________________________

5. Do you think Mr.Yang is a good teacher?

    __________________________________________________

题型:解答题

—Have you mended your shoes, Bob ?

—Yes, I ______ them twenty minutes ago. [ ]

A. have mended  

B. mend  

C. had mended  

D. mended

题型:解答题

治疗手部严重烧伤后畸形,主要要求条件不应是以下哪条

A.柔软的皮肤覆盖

B.有屈伸活动的掌指关节

C.主要考虑外形

D.具有外展、对掌功能的拇指

E.一定长度的手指

题型:解答题

该批免费补偿货物进口时,其报关单“贸易方式”栏应填:

A.一般贸易

B.补偿贸易

C.无代价抵偿

D.退检货物

题型:解答题

D420A支持软交对接协议有()。

A.SIP

B.MGCP

C.H.248

D.STP

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