问题
多项选择题
在常规CP下,LTE的子载波间隔取决于哪些因素()
A.频谱效率
B.多径
C.多普勒频移
D.相位噪声
答案
参考答案:A, C, D
在常规CP下,LTE的子载波间隔取决于哪些因素()
A.频谱效率
B.多径
C.多普勒频移
D.相位噪声
参考答案:A, C, D
完形填空。 | ||||
I have a new classmate, Danny. He __1__ from Canada. Canada is a beautiful __2__. It is east of China. Ottawa is __3__ capital city. People in Canada __4__ English and French. The __5__ of the flag is red and white. It has a red __6__ on it. Danny's mother and father are __7__. They teach (教) English in the same school in Beijing. They can speak Chinese well. Danny __8__ the Bird's Nest (鸟巢) and the Water Cube (水立方) very much. Danny wants to learn Chinese history (历史), because he wants to know more __9__ China. The Great Wall is very __10__ in the world. Danny and his parents want to visit it this weekend. | ||||
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