题目内容

Whichcellpatternisrecommendedtousewhenusingfrequencyhopping?()

A. 4/12
B. 3/9
C. 7/21
D. 7/7

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Reusingfrequenciesinacellularpattern(comparedto“onebigcell”)()

A. Increaseschannelutilization,cost,andinterference.
B. Increasescapacityandcost,butdecreasesinterference.
C. Increasescapacity,butdecreasescostandinterference.
D. Increasescapacity,cost,andinterference.

能够逆向转运胆固醇到肝的脂蛋白是()。

A. CM
B. LDL
C. VLDL
D. HDL

Asubscribermakesatwo-minutecallandafour-minutecallduringthebusyhour.Howmuchtrafficdoeshegenerateforthathour?()

A. 33millierlangs
B. 66millierlangs
C. 100millierlangs
D. 10millierlangs
E. 25millierlangs

当人员落水,驶近落水者的操船方法,最适用立即行动的操船方法是()。 ①singleturn ②doubleturn ③Williamsonturn ④Scharnowturn

A. ①②③④
B. ①②③
C. ①②
D. ③④

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