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【多选题】
下面关于垄断竞争厂商长期均衡的描述正确的是( ) 。
A.
垄断竞争厂商的长期均衡包括三个条件:MR=MC;AR=AC;D=d
B.
MR=MC代表利润最大或者亏损最小
C.
AR=AC代表超额经济利润为零
D.
D=d代表厂商的计划与现实相吻合
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A.
You sure
B.
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B.
水汽输送
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D.
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B.
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D.
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【单选题】I could make no _____ of his carelessly written letter.
A.
difference
B.
sense
C.
differences
D.
senses
【多选题】Excel文件的扩展名为()。
A.
EXE
B.
EXC
C.
xls
D.
xlsx
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A.
.xlsx
B.
.cel
C.
.xls
D.
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【简答题】I __________ the essay Todd recommended but could make no sense of it.
【单选题】— I’ve studied your program, Peter. Could I make some suggestions? — _________. I am all ears.
A.
By no means
B.
Take it easy
C.
Go right ahead
D.
With pleasure
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A.
Who cares
B.
How dare you
C.
For what
D.
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【判断题】特有的名称、包装和装潢概念:具有区别商品来源的显著特征的商品的名称、包装、装潢,应当认定为特有的名称、包装、装潢。而且必须不是商标法中禁止使用的內容。
A.
正确
B.
错误
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