QPSK数据调制就是把（）个连续的二进制比特映射成一个复数值的数

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QPSK数据调制就是把（）个连续的二进制比特映射成一个复数值的数据符号，8PSK数据调制就是把（）个连续的二进制比特映射成一个复数值的数据符号。

答案

参考答案：2，3

阅读理解

阅读理解。

阅读提示：在我们北半球，正午的太阳在正南方。而在南半球，正午的太阳却是在正北方。

An English student goes to Australia to study. He walks around the city to look for a warm room.

One evening he walks in the street with a map of the city. He sees a house. " What a nice room it is! "

he says, " The windows are in the south side (面). The sun will come into the room in the day. I like it." So

he wants to live in it. But he is wrong (错的). The sun is always in the north in the city. Do you know why?

1. What does the English student want to do in Australia?

A. He wants to go on a trip.

B. He wants to study.

C. He wants to buy a room.

2. The student comes from ____________.

A. the U. K.

B. the U. S.

C. Canada

3. The sun is always in the ____________ in that city.

A. south

B. north

C. east

4. What is the English student looking for?

A. A good school.

B. A beautiful room.

C. A warm room.

5. The English student looks for a room ____________.

A. by bus

B. by bicycle

C. on foot

问答题简答题

艺术理解在文学创作过程有哪些作用？