四冲程的汽油机一个工作循环中,对外做功的次数是( ) A.3次 B.2次 C.1 发布时间:2017-04-19 14:36 │ 来源:www.tikuol.com 题型:选择题 问题: 四冲程的汽油机一个工作循环中,对外做功的次数是( )A.3次B.2次C.1次D.4次
题型:选择题 用所给单词的适当形式填空 。1.I spend half an hour____ (watch) TV every night. 2.The little girl is interested in (read) stroy books. 3. The woman____(have) to work for ten hours every day. 4. Some of the_______(insect) are very cute. 5. He hates_______(get) to the theatre late. 查看答案