题目内容（请给出正确答案）

[主观题]

A．a primary stationB．one or more primary stationsC．a secondary stationD．one or more se

A．a primary station

B．one or more primary stations

C．a secondary station

D．one or more secondary stations

提问人：网友zbh105a 发布时间：2022-01-06

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第2题

What is the cousin of the man？A．A university student.B．A primary school student.C．A high s

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第3题

What kind of institution did the lead researcher work for？A．a medical association.B．a prim

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第4题

●SDLC was invented by IBM to replace the older Bisynchronous protocol for wide area connec

tions between IBM equipment ．A varietion of the (71) protocol called NRM is essentially the same as SDLC．SDLC is (72) protocol like HDLC , Frame. Relay or X．25．An SDLC network is made up of (73) that controls all communications , and (74) ．It is capable of (75) operation, but almost all practical applications are strictly half duplex．

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D．X．21

(72) A．a peer to peer

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C．not a peer to peer

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(73) A．a primary station

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(74) A．a primary station

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(75) A．half duplex

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第5题

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第7题

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C．a diagnostic test for separating biologically determined behavior. patterns from culture- specific detail

D．a practical method for resisting the pressures of biologically determined drives

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