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问题 单项选择题

心境障碍维持期治疗碳酸锂的治疗血浓度为（）

A.0.4～0.8mmol／L

B.0.8～1.2mmol/L

C.1.3—1.9mmol/L

D.2～2.2mmol／L

E.2.3～3.2mmol／L

答案

参考答案：A

单项选择题

Whenever new information is entered, it must be stored somewhere in the computer’s (70) . RAM only (71) the data temporarily. That is, all information stored in the RAM will disappear if you switch the computer off.

A．takes

B．executes

C．erases

D．holds
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