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【单选题】
在夹具中,长圆柱心轴作工件上圆柱的定位元件,可以限制工件的( )自由度。A.
二个
B.
三个
C.
四个
D.
五个
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反馈参考答案：
举一反三
【判断题】Prefixing each message with its length is a popular choice for high-performance protocols.
A.
正确
B.
错误
【单选题】The identification character of each NAVTEX station is regarded as()to the messa ges.
A.
the only preamble
B.
a part of the preamble
C.
the closing
D.
the suspension
【单选题】Advertising is different from other forms of communication in that the advertiser pays for the message .
A.
to deliver
B.
having delivered
C.
to be delivered
D.
delivering
【单选题】Advertising is different from other forms of communication in that the advertiser pays for the message .
A.
to deliver
B.
delivered
C.
to be delivered
D.
delivering
【简答题】阅读下面短文并回答问题(请注意问题后的词数要求). [1] Do you spend over an hour each day texting messages to your friends? Do you frequently ignore work, study, and other activities to check your phone for messages? Are you ...
【简答题】SECTION B ENGLISH TO CHINESE Directions: Translate the following text into Chinese. His message perplexed his mind to that degree that he was fain, several times, to take off his hat to scratch his he...
【单选题】Language may be _________ to our own species, the capacity of mean, to transmit messages vital to survival, and to understand them, certainly is not.
A.
effective
B.
unique
C.
relative
D.
misunderstanding
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