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问题 单项选择题

意识包括意识内容和觉醒状态两个组成部分，决定意识觉醒状态的解剖结构是（）

A.双大脑皮质

B.特异性上行投射系统

C.非特异性上行网状激活系统

D.间脑和脑干

E.锥体外系

答案

参考答案：C

填空题

两只电阻R1：R2=3∶5，将它们串联后接在某电路中，则通过它们的电流之比为I1∶I2=    ；将它们并联后接在同一电路中，则它们两端的电压之比为U1∶U2=    。
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单项选择题

Many of the activities performed during the preliminary investigation are still being conducted in（）, but in much greater depth than before. During this phase, the analyst must become fully aware of the（） and must develop enough knowledge about the （） and the existing systems to enable an effective solution to be proposed and implemented. Besides the（）for process and data of current system, the deliverable from this phase also includes the （） for the proposed system.

A．analysis phase

B．design phase

C．implementation phase

D．maintenance phase
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