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【单选题】
设信道带宽为3400HZ,采用PCM编码,采样周期为125μs,每个样本量化为128=2^7个等级,则信道的数据率为A.
10Kb/s
B.
16Kb/s
C.
56Kb/s
D.
64 Kb/s
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【简答题】阅读旅馆周边的介绍, 判断以下陈述的正误(T/F)。注意作答时要有序号 Welcome to Jiajia Hotel! I’d like to introduce the hotel surroundings周边 to you. There is a supermarket near our hotel. If you want to go to the supermarket, just go...
【单选题】—Didn' you go to your sister' wedding? —No, didn'; I’d like to have, ______. [ ]
A.
though
B.
either
C.
too
D.
instead
【简答题】阅读短文, 判断正误。T or F Welcome to Jiajia Hotel! I’d like to introduce the hotel surroundings to you. There is a supermarket near our hotel. If you want to go to the supermarket, just go down the road, and ...
【简答题】根据情景内容补全对话 A: Hi, Frank . I’d like to invite you to our English corner. B: Sounds interesting . I’d love to come. And 1) ____________ 2) ____________ ? A: At 5 : 0 0 pm . B: 3) ____________ is it goin...
【简答题】对于钢板深处的缺陷宜采用 探伤;对于钢板表面的宜采用 探伤。
【简答题】对处于钢板深度的缺陷宜采用 探伤,对处于钢板表面的缺陷宜采用 探伤。
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