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【简答题】
有鞭毛的细菌在半固体培养基内的生长现象:____。
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【单选题】主要用于网站自身或为第三方客户进行需求调查或收集用户反馈信息的网上单证是( )
A.
普通信息交流类网上单证
B.
信息发布系统网上单证
C.
身份注册类网上单证
D.
用户登录网上单证
【单选题】An example of an externality is the impact of
A.
bad weather on the income of farmers.
B.
the personal income tax on a person's ability to purchase goods and services.
C.
pollution from a factory on the health of people in the vicinity of the factory.
D.
increases in health care costs on the health of individuals in society.
【单选题】An externality is theimpact of
A.
society's decisions on the well-being of society.
B.
a person's actions on that person's well-being.
C.
one person's actions on the well-being of a bystander.
D.
society's decisions on the poorest person in the society.
【单选题】An externality is the impact of
A.
a. society's decisions on the well-being of society.
B.
b. a person's actions on that person's well-being.
C.
c. one person's actions on the well-being of a bystander.
D.
d. society's decisions on the poorest person in the society.
【单选题】主要用于网站自身或为第三方客户进行需求调查或收集用户反馈信息的网上单证是（）。
A.
普通信息交流类网上单证
B.
信息发布系统网上单证
C.
身份注册类网上单证
D.
用户登陆网上单证
【单选题】An externality is an example of
A.
a corrective tax
B.
a tradable pollution permit
C.
a market failure
D.
Both a and b are correct
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