在比例尺是50:1的图纸上,一种精密零件的图上长度是40厘米,则这种零件的实际长度是( )毫米。
8。
单词拼写
1. I can't c_____________ with him, my telephone doesn't work..
2. He can't eat much because he s___________ from stomachache.
3. I'm in a difficult s_____________ and I don't know what to do.
4. My roommate happens to have moved away so you can s__________ the room with me.
5. He sent a s___________ of stamps as my birthday gift.
6. You needn't have been so angry with her, for she broke the glass accidentally, not on p____________.
7. Young girls and boys are c_________ about rock music.
8. If you want to read quickly and well, you should increase your ____________(词汇量).
9. A dead body was found under the bridge, but it was hard to determine the ____________(身份).
10. Our _____________(政府) is coming to care more about the poor and weak.
手动阀实际上是一种多路(),位于控制系统的阀板总成中,由驾驶员和机械传动机构的操纵手柄进行控制,实现自动变速器()的切换。