题型:写作题 假如你是Wang Lin, 你想要成为Andrew的笔友,下面表格中是有关你的信息,请你根据以下提示给写一封信,不少于60 词。Name Wang Lin Appearance Tall, medium buildHobby Music, basketball, watch sports newsWant to beA reporter Last weekendIn the morning, visit grandparentsIn the afternoon, do some reading, ……Dear Andrew,My name is Wang Lin. I want to be your pen pal. Can you write to me soon? Yours, Wang Lin 查看答案
题型:多项选择题 同轴电缆干线传输系统特点()。A、传输信号损耗较小B、干线中所需串接放大器的数量少C、传输信号电平在不同季节会出现较大波动D、双向传输接续较复杂E、对高频信号的衰减量大,对低频信号的衰减量小 查看答案