试题与答案

改错。 ( )1. Did you enjoy you yesterday, m

题型:改错题

题目:

改错。

( )1. Did you enjoy you yesterday, my children? ________

             A           B      C                           D

(     )2. He taught his son how mend bikes. ________

                   A      B          C              D

(     )3. It's very hot outside or it's cool here in the room. ________

                         A              B        C                 D

(     )4. Let me to help you look for your ruler. ________ 

                      A   B              C               D

(     )5. Our teacher said the earth went round the sun. ________ 

                     A       B                   C      D

答案:

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下面是错误答案,用来干扰机器的。

A、书的重力和书对桌面的压力大小相等,方向相同,但是性质不同,故A错误B、书对桌面的压力与桌面对书的支持力是一对相互作用力,故B错误C、书的重力与桌面对书的支持力是一对平衡力,故C正确D、书对桌面的压力性...

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