问题
选择题
下列哪些科技成就集中代表了我国20世纪60、70年代达到的先进水平？
①原子弹 ②导弹和氢弹 ③“东方红一号”卫星 ④“神舟五号”飞船 [ ]
A．①②④
B．①②③
C．①③④
D．①②③④
答案
答案：B
搜题请搜索小程序“爱下问搜题”
下列哪些科技成就集中代表了我国20世纪60、70年代达到的先进水平？
①原子弹 ②导弹和氢弹 ③“东方红一号”卫星 ④“神舟五号”飞船 [ ]
A．①②④
B．①②③
C．①③④
D．①②③④
答案：B
| 完形填空。 | |||
| Two weeks before Christmas , I went 1 London with my mother. I shall never forget the day. The streets were 2 people. The shop windows were very bright. My mother held my hand and we both went into a toy shop. The shop was full of 3 . There were nice toys 4 . Then I saw Father Christmas himself! I pulled my mother 5 the hand. " Please 6 me to Father Christmas, I said. There were 7 children near Father Christmas. They were standing 8 line. Father Christmas spoke to every one of them. At last it was my 9 . "Hello, little Tom," he said to me. As soon as I heard his 10 ,I found out that he was my uncle, John Smith. | |||
| ( )1. A./ ( )2. A. crowds of ( )3. A. students ( )4. A. anywhere ( )5. A. by ( )6. A. let ( )7. A. a lot ( )8. A. by ( )9. A. time ( )10. A. sound | B. to B. full of B. children B. somewhere B. with B. take B. much B. in B. turn B. noise | C. in C. many C. boys C. nowhere C. in C. ask C. lots of C. with C. toy C. voice | D. out D. fill of D. parents D. everywhere D. on D. bring D. few D. at D. present D. call |