发动机反推平移罩的人工放出时，需要：（）A、反推旁通活门锁定在开位，安装反推平移罩地
题型：单项选择题
问题：
发动机反推平移罩的人工放出时，需要：（）
A、反推旁通活门锁定在开位，安装反推平移罩地面解除销
B、反推旁通活门锁定在开位，不安装反推平移罩地面解除销
C、反推旁通活门释放在关位，安装反推平移罩地面解除销
D、反推旁通活门释放在关位，不安装反推平移罩地面解除销
题型：单项选择题
| 完形填空。 | |||
| Tim was ten years old. He was not a very good pupil, and he did not like __1__ to do homework be  cause he enjoyed __2__ other things in his free time . Frequently he did not do his homework and when he did do it he always __3__ a lot of mistakes. One day his mathematics teacher __4__ Tim's homework and saw that he__5__ all his sum  s right. Hewas very pleased and rather __6__ . He called Time to his desk and said to him. "You got all your home work right this time, Tim. What __7__ ? Did you father help__8__ ?" Usually Tim's father did help him __9__ his homework, but the evening before this, he had not been able to, because he had not  been at home, so Tim answered, "No,sir, he was very busy last night, so Ihad to do it all __10__ ." | |||
| ( ) 1. A. had ( ) 2. A. doing ( ) 3. A. makes ( ) 4. A. looked for ( ) 5. A. had got ( ) 6. A. angry ( ) 7. A. is the matter ( ) 8. A. yourself ( ) 9. A. with ( ) 10. A. my own | B. having B. to do B. making B. looked at B. has got B. sad B. was wrong B. himself B. in B. lonely | C. doing C. did C. made C. looked around C. got C. surprised C. made you C. him C. on C. alone | D. has D. do D. has mde D. looked up D. didn't get D. excited D. happened D. you D. to D. myself |