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【简答题】
选词填空。(共10题,计10分) ___71___, everyone! My name is Lucy King. Lucy is my ___72___ name. And Miller is my__73____. I’m an ___74___ girl. I’m __75____ years old. Ben is my brother. He is thirteen. We are in No. 12 __76____ School. My mother is a ___77_____ teacher at our school. I have a ___78___. ___79___ name is Wangwang. It’s a nice dog. We are good __80____.
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参考答案:
举一反三
【单选题】Highest market demand and industry profits arise when:
A.
early adopters leave the market.
B.
innovators and early adopters enter the market.
C.
when laggards and late majority leave the market.
D.
early and late majority users enter the market.
E.
when the production costs become high.
【单选题】When economic profits in an industry are zero and implicit costs are positive:
A.
accounting profits will be greater than zero.
B.
resources will be attracted to the industry.
C.
resources will not tend to either enter or leave the industry, other things equal.
D.
both (a) and (c) will be true.
【简答题】6 和 都随时间按正弦规律作周期性变化的交流电称为 。、
【判断题】多核苷酸链内共价键断裂叫变性
A.
正确
B.
错误
【单选题】Suppose an oligopolist individually maximizes its profits. When calculating profits, if the output effect exceeds the price effect on the marginal unit of production, then the oligopolist
A.
should produce more units.
B.
has maximized profits.
C.
is in a Nash equilibrium.
D.
should produce fewer units.
【单选题】When would you expect economic profits in an industry to be zero?
A.
When firms are entering the industry.
B.
When firms are leaving the industry.
C.
When existing firms are growing.
D.
When firms have no incentives to enter or exit.
【多选题】一般溶液的配制主要是指()
A.
指示剂
B.
缓冲容剂
C.
显色剂
D.
掩蔽体
E.
滴定剂
【单选题】甲企业为增值税一般纳税人,2019年10月19日与乙企业(一般纳税人)签订一份购销合同。2019年10月25日收到第一笔货款150万元,2019年11月3日发出商品, 2019年11月7日收到第二笔货款528万元,并开具增值税专用发票,增值税税率13%。假 定不考虑其他因素,则下列说法中正确的是( )。
A.
甲企业应于2019年10月25日确认收入150万元
B.
甲企业应于2019年11月3日确认收入678万元
C.
甲企业应于2019年11月7日确认纳税义务
D.
甲企业应于2019年11月7日收到第二笔货款时,贷记“预收账款”528万元
【简答题】多核苷酸链内共价键断裂叫变性。(    )
【单选题】With cumulative preferred stock, stockholders can______.
A.
claim to the former profits when the company has a good year
B.
have more control over the company
C.
claim to the former profits when the company had a bad year
D.
receive high returns
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