看图补全对话。

A: What's this, Li Ming?

B: It's a 1___________.

A: Yes, this is a map of our 2___________. We live in 3___________. We speak 4___________.

    What is the 5___________ city of China?

B: It's Beijing.

A: Yes! Beijing is the capital city of China! What country is 6___________ of China? Do you know, Li Ming?

B: Yes, I 7___________. The U. S. is east of China.

A: What colour is our flag, do you know?

B: 8___________, I know. It is 9___________. It has 10___________ stars.

在发电机定子上相隔（）的电角度放三组线圈，这样的发电机叫三相交流发电机

A.60°

B.120°

C.180°