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【多选题】
关于数字信号的特点,正确的说法有
A.
抗干扰能力强无噪声积累
B.
便于加密处理
C.
便于存储
D.
占用信道频带较宽
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参考答案:
举一反三
【简答题】Sometimes two things are to be done at the same time, both _ 1 ________ your attention. you can only take up one of them, the other has to wait or be given up. But you know the future is 2 __________...
【简答题】( )是社会变革的先导
【简答题】What two things sometimes make it difficult to find enough time for leisure?
【简答题】Sometimes two things are to be done at the same time, both _________ your attention. you can only take up one of them, the other has to wait or be given up. But you know the future is _____________—t...
【简答题】While you’re doing this, agree to give each other your quiet time and your (5) , but also set up times when youcan do things together. Sometimes sharing a meal in the cafeteria can bring two people a ...
【单选题】下列对诗中相关词语解说有误的一项是( A )
A.
“酬”是酬答的意思;“二十三年”指白居易于唐顺宗永贞元年九月被贬,到唐敬宗宝历二年被召回,前后近二十三年;“弃置”指被贬谪。
B.
“闻笛赋”指晋朝的向秀所作的《思旧赋》,诗人用这个典故,是为了怀念被贬害的朋友。
C.
“烂柯人”指晋朝人王质。诗人用这个典故是表达人世沧桑之感。
D.
“听君”中的“君”是指唐代诗人白居易,字乐天;“歌一曲”指白居易所作的《醉后赠刘二十八使君》。
【单选题】阵发性室上性心动过速的发生机制主要是
A.
心肌缺血
B.
折返机制
C.
高血压病
D.
感染性心内膜炎
E.
洋地黄中毒
【多选题】“《春秋三传》”包括哪些著作?
A.
《春秋》
B.
《左氏传》
C.
《公羊传》
D.
《谷梁传》
【简答题】How to ______1______your free time When people find out I write about time management, They assume two things. One is that I'm always _____2_____ time, and I'm not. I have four small children, and I w...
【简答题】Sometimes people call each other “scaredy-cat”, but have you ever thought about this expression? When a cat is frightened, its heart starts beating faster, its muscles get tense, and there are changes...
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