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问题 单项选择题

集成双向移位寄存器74LS194应用电路如题15图，该电路初始状态为Q0Q1Q2Q3=0001，则经过三个CP后，电路的状态应为Q0Q1Q2Q3=（）

A．0100

B．0001

C．1000

D．0010

答案

参考答案：D

单项选择题 A1型题

对危重急性中毒者，治疗上应立即采取的措施是（）。

A.吸氧

B.导泻

C.维持生命体征并终止毒物接触

D.洗胃

E.使用特效解毒药
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单项选择题

In the following essay, each blank has four choices. Choose the most suitable one from the four choices and write down in the answer sheet.

The key to SNMP (71) is its simplicity. It has a small command set that does a good job of collecting information from (72) any network device. In a SNMP environment, (73) of the work is handled by the network management system. Devices that are being managed are not (74) with processing (75) that might affect their performance.

71（）

A．popularity

B．function

C．efficiency

D．power
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