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问题 多项选择题

竞争者的存在给予了一定的战略意义，以下说法中正确的有（）。

A.它们减少了违反反托拉斯法的风险

B.它们可以增加总需求

C.它们导致更多差别

D.它们为效率较低的生产者提供了一把成本保护伞

E.它们分享市场开发成本和给一项新技术以合法地位

答案

参考答案：A, B, C, D, E

多项选择题

根据我国公司法规定，国有独资公司的董事会经过国有资产监督管理机构的授权可以行使部分股东会的职权，以下不属于此类职权的有( )。

A．公司合并或分立

B．公司发行债券

C．公司章程制定

D．公司注册资本的增减
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单项选择题

Manners are important to happy relations among people. Everyone likes a person with good manners. No one likes a person with bad manners. But what are good manners How does one know what to do and what not to do

Good manners are important ______.
A. when you are reading
B. when you get along with other people
C. when you are doing your work

As a student, it is bad manners to come late to class. If you are late you should make an apology to the teacher at the time or after class. It is also bad manners to keep silent when the teacher asks you a question. If you do not know the answer, say "I don’t know" at once. If you do know, answer in a loud enough voice so that all the class may hear. It is polite for the students to help the teacher. Sometimes students can help their teacher to clean the blackboard, to close or open the door or windows. Sometimes there are papers to collect or to hand out. This kind of help is always appreciated.
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