题目内容

动参考系是指将另一个参考系视作相对于定系做某种运动的参考系。()

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A.work outB.lead toC.make forD.take up

A. work out
B. lead to
C. make for
D. take up

极限抗拉强度(UTS)也称破坏强度、综合破断力。()

Now and in the future, we will live as free people, not in fear and never at the mercy of

A. in the interest of
B. under the control of
C. for the sake of
D. at the cost of

数据链路层的差错控制的实现主要依靠()技术。
A纠错码
B滑动窗口
C检错码
D字符填充

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