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【单选题】
在数据封装过程中哪层会加上尾部( )A.
物理层
B.
数据链路层
C.
网际层
D.
传输层
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反馈参考答案：
举一反三
【简答题】使元件自保持ON状态,用 (SET/RST)指令;使元件自保持OFF状态,用 (SET/RST)指令。
【单选题】She went out, ______her baby by itself.
A.
left
B.
leaving
C.
having left
D.
to leave
【单选题】Which of the following words is a derivati ve (派生词) ?
A.
outsource
B.
photobomber
C.
backup
D.
likewise
【简答题】编程填空：三生三世 通过码
【简答题】One sunny afternoon, a seven-year-old girl went for a walk. She crossed a large area of grassland into the woods __31__ she realized that she was lost. Sitting on a rock and __32__ what to do, she beg...
【简答题】What is the role of derivati1ves securities during the 1998 crash in Korea? And what about non-resident investors (foreign investors )'s role or influence? Is there any empirical testing method in th...
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