问题
单项选择题
“18世纪后期……在英国,为了从矿井里抽水和转动新机械的机轮,急需有一种新的动力之源……”完成这一历史性任务的是()
A.牛顿
B.瓦特
C.爱迪生
D.爱因斯坦
答案
参考答案:B
“18世纪后期……在英国,为了从矿井里抽水和转动新机械的机轮,急需有一种新的动力之源……”完成这一历史性任务的是()
A.牛顿
B.瓦特
C.爱迪生
D.爱因斯坦
参考答案:B
补全对话。 | |
A: Could I speak to Susan, please? B: Speaking, please. A: This is Paul. 1 B: Fine, thank you. 2 A: I'm in London. I'm at my aunt's home. B: Oh, what's the weather like there? A: It's terrible. 3 B: What are you doing now? A: 4 How's the weather in Taiyuan? B: It's sunny. I'm playing baseball with Jeff. A: Jeff? Your pen pal from Shanghai? B: Yeah! He comes to see me today. A: 5 B: Thank you.
|