热继电器对于船舶三相异步电动机来说，不能进行保护的（）。A．短路 B．过载 C．缺相 发布时间：2017-07-08 20:12 │ 来源：www.tikuol.com 题型：单项选择题 问题： 热继电器对于船舶三相异步电动机来说，不能进行保护的（）。A．短路B．过载C．缺相运行D．过载和缺相运行
题型：单项选择题 完形填空。 I like science very much. I want to be a ____1____ when I'm older. But I don't know how to become one. There ____2____ one special answer for everyone, but I can tell you some ideas. Start with something from the world ____3____ you, and you can learn about it and understand it. Here are some suggestions(建议). How about birds? Ask your mum or dad it you can ___4___a cage. Then try to find someone who may ____5____ the birds and can teach you about the birds. How about numbers? You may think that maths is ____6____. But you will be surprised if you start doing puzzles and games with them. ____7____ can be fun. How about stars? ____8___ someone among your friends who can help you pick out stars and groups of stars. There are lots of ideas ____9____ these. They are will be fun and teach you things. You will soon learn these things from nature. ____10____ are not science. They only help you understand it.( )1.A. teacher ( )2.A. is ( )3.A. around ( )4.A. put ( )5.A. know ( )6.A. easy ( )7.A. Numb ers ( )8.A. Look at ( )9.A. as ( )10.A. Books B. reporter B. isn't B. before B. give up B. know about B. not easy B. Games B. Look up B. about B. Language C. scientist C. will be C. beside C. hand in C. learn C. interesting C. Puzzles C. Look for C. like C. Ideas D. doctor D. haven't D. in front of D. put up D. learn from D. not difficult D. Birds D. Look after D. for D. Messages 查看答案
ere are some suggestions(建议). How about birds? Ask your mum or dad it you can ___4___a cage. Then try to find someone who may ____5____ the birds and can teach you about the birds.
numbers? You may think that maths is ____6____. But you will be surprised if you start