下列属于自吸式磁力泵结构的是（）A、隔板 B、隔离层 C、外磁钢总成 D、内磁钢总成 发布时间：2017-04-26 02:26 │ 来源：www.tikuol.com 题型：多项选择题 问题： 下列属于自吸式磁力泵结构的是（）A、隔板B、隔离层C、外磁钢总成D、内磁钢总成
题型：多项选择题 Faced with a bill for $10,000，________.A．an extra job has been given to JohnB．the boss has given John an extra jobC．an extra job has been takenD．John has taken an extra job 查看答案
题型：多项选择题 对句。（1）云对雨，雪对______，晚照对______。 （2）两岸晓烟杨柳绿，________________。 （3）松竹梅岁寒三友，________________。 查看答案
题型：多项选择题 单句改错 （每句均有一处错误）。 1. I have arrived here for three days. 2. Look!The boys are visitting the Great Wall. 3. It's very important learn English well. 4. How do you think of the city? 5. I've heard the newest news. 6. I have caught these fish for about an hour. 7. I've found my pen. I forgot it on the desk. 8. I've never seen such an animal somewhere. 9. Have you finished to read all these newspapers and magazines?10. Have they tried to send informations to us? ______ ______ ______ ______ ______ ______ ______ ______ ______ ______ 查看答案
