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【单选题】
机器知识系统与自然人知识系统是?A.
一个知识系统
B.
完全不同的两个知识系统
C.
不能独立的知识系统
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举一反三
【简答题】How many rooms do the tourists live in?
【简答题】Li Ming is discussing meal arrangements with Ms. Blaire Listen to the conversation and complete the answers to the following questions. 1. What's the problem with meal arrangements? The tourists comp...
【简答题】根据句意及首字母提示完成单词。 1. There aren't a_____ students in the room. 2. The tall b_____ is a hotel and there are a lot of rooms in it. 3. There is a big g_____ in our school and we often play basketball in it...
【单选题】He can choose from different jobs and probably changes his work more frequently as he is not ______ to a choice within a small radius.
A.
restrained
B.
hampered
C.
refrained
D.
restricted
【简答题】压力水柜水压0.3MPa,水位比水舱高8m,供水泵排压0.4MPa,吸压-0.05MPa, 管路阻力为( )m。
【简答题】根据首中文意思用适当的形式填写句中的单词。 1. What __________ (有乐趣) it will be when we all go on holiday together! 2. __________ (一旦) he starts to do something, he won't stop until it is finished. 3. After __________ (毕业)...
【多选题】下列关于误码率的叙述中,正确的是
A.
误码率是衡量数据传输系统在正常工作状态下传输可靠性的参数
B.
对于一个实际的数据传输系统，要求的误码率越低，则传输系统设备的造价就越高
C.
实际应用数据传输系统的误码率可以达到0
D.
在实际测量一个数据传输系统时，只有被测量的传输二进制码元数足够多，才会越接近于真正的误码率
【单选题】He can speak English, German, French and Japanese. He is really a man with a (n) ______ for language.
A.
gift
B.
present
C.
ability
D.
skill
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