第10题: [多项选择]以下哪些参数会影响射频直放站上行(反向)增益的设置() A. 施主基站馈缆损耗及天线增益; B. 直放站业务天线增益及馈缆损耗; C. 直放站施主天线增益及馈缆损耗; D. 直放站与施主基站的噪声系数; 参考答案:A, C, D
第11题: [单项选择]{{B}}Questions 11 to 18 are based on the conversation you are going to hear.{{/B}} A. His flight arrived late. B. His flight took three hours. C. Mary had a long drive to the airport. D. Mary had trouble finding the airport. 参考答案:A 答案解析:[听力原文]
W: Did Mary meet you at the airport yesterday
M: Yes. But she sure got tired waiting for m
第31题: [单项选择]设以下变量均为int类型,则值不等于7的表达式是 A. (x=y=6,x+y,X+1) B. (x=y=6,x+y,y+1) C. (x=6,x+1,y=6,x+ D. (y=6,y+1,x+y,x+1) 参考答案:C 答案解析:解析:C++语言中逗号“,”也是一种运算符,称为逗号运算符。其功能是把两个表达式连接起来组成一个表达式,称为逗号表达式。其一般形式为:表达式1,表达式2,其求值过程是分别求两个表达式的值,并以表达式2