在下列两个案例中各有5个问题，请在各问题答案的选项中选出一个或一个以上正确答案。 北

蛤蚧有四足，四足均有五趾，五趾的特征是

A．五趾均具爪，趾底面具吸盘

B．五趾均具爪，趾底面无吸盘

C．五趾均具爪，趾间有皮膜相连

D．趾中有4趾具爪，趾底面无吸盘

E．趾中有4趾具爪，趾底面具吸盘

用合适的介词或副词填空

11.Tell me ________ the concert.

2.If you like, I will send you ________ a different place to work.

3.Don’t use my computer ________ playing games.

4.Would you like to help the old woman ________ her housework?

5.If you tell a lie to me, I’ll be angry ________ you.

6.Lin Tao wants to play the game ________ my new computer.

7.My father said that I could use his computer only ________my homework.

8.You should say sorry to her, ________ all, you have hurt her.

9.Next time you should play football ________ Da Wei.

10.My dad was ________, so I decided to use his computer.

依照我国产品质量法的有关规定，产品质量监督抽查应当以产品所执行的标准为判断依据，产品所执行的标准包括国家标准、行业标准、地方标准和（）。

A.国际标准

B.合同标准

C.企业标准

D.经过备案的企业标准

便携式报警器使用前，首先要检查好电源电压是否充足。

压缩机冷却水供水不足会使机出口温度过低。