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【多选题】
以下对微观经济学的描述,正确的是()。A.
研究对象是个别经济单位的经济行为。（居民户、厂商）
B.
解决的问题是资源配置。Resource allocation
C.
中心理论是价格理论。（看不见的手Invisible hand ）
D.
研究方法是个量分析。研究经济变量的单项数值如何决定。
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皮皮学刷刷变学霸
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【简答题】磁电系电流表由 和 两者组成 组成。
【单选题】某企业采用月末一次加权平均法核算原材料，月初库存材料100件，每件为80元，月中又购进两批，一次150件，每件75元，另一次250件，每件85元，则月末该材料的加权平均单价为（ ）元。
A.
81
B.
72.5
C.
75
D.
85
【多选题】Which one is the merit of the computer?
A.
Keep in touch with our friends and family members through video chat.
B.
Efficiently find the information through search engine.
C.
Teachers can utilize online resources to make a supplement to their teaching contents.
D.
The employees have more freedom, and more flexible work schedules.
【单选题】Which one is the merit of the computer?
A.
It leads to an unhealthy and sedentary lifestyle
B.
Staring at a computer for many hours causes eye strain or headaches.
C.
The reduction of face-to-face interaction causes social isolation.
D.
It helps us find information quickly, easily,effectively and efficiently .
【简答题】磁电系电流表由 和 两者并联组成。
【多选题】Which one is the merit of the computer?
A.
Teachers can utilize online resources to make a supplement to their teaching contents.
B.
Efficiently find the information through search engine.
C.
The employees have more freedom, and more flexible work schedules.
D.
Keep in touch with our friends and family members through video chat.
【简答题】磁电系电流表由 和 两者 组成。
【多选题】Which one is not the merit of the computer?
A.
Keep in touch with our friends and family members through video chat
B.
The employees have more freedom and more flexible work.
C.
Rely too much on computer.
D.
Leading to an unhealthy and sedentary lifestyle.
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