世界上最小的海是（）。A、渤海 B、日本海 C、马尔马拉海 D、_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

世界上最小的海是（）。

A、渤海

B、日本海

C、马尔马拉海

D、帝汶海

答案

参考答案：C

补全对话，情景问答

情景交际 (有两个多余项) 。

A: It's dark. We have to be back now.
B: Yes. Look at the tree! __1__ We are sure to get out of the woods.
A: __2__
B: Let me use the compass. Oh, you are wrong. It is east.
A: __3__
B: Then let's follow this direction and walk straight.
A: Let's go. __4__ (About half an hour later)
A: Look there. __5__
B: Yes. We'll get home soon.

A. I don't know the way out.
B. It's the tallest building of our town.
C. But we don't know the direction. Is it north?
D. We once had a short rest under that tree.
E. I can't see anything over there.
F. I believe we will find the way out.
G. I remember we came into the woods from the east.

填空题

计算机网络是由多台计算机互联而成的，为保证网络中计算机间的数据交换，要求计算机在交换数据的过程中遵守相应的网络协议。一个网络协议由语法、______和时序三个要素组成。