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【单选题】
2019年1月1日起实施的《中华人民共和国电子商务法》,是我国电商领域首部综合性法律。今后,保障电子商务各方主体的合法权益、规范电子商务行为有了专门的法律。这表明我国法律A.
具有规范和保护作用
B.
是由国家制定或认可
C.
是靠国家强制力保证实施
D.
对全体社会成员具有普遍约束力
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举一反三
【单选题】以下哪项参数可以调整Particular插件中,让粒子继承发射器的速度?
A.
Velocity
B.
Velocity Random
C.
Velocity Distribution
D.
Velocity From Motion
【简答题】干扰(co-intervention)(名词解释)
【单选题】Government intervention in the marketplace:
A.
always benefits society.
B.
always harms society.
C.
may either benefit or harm society depending on the type and extent of government intervention.
D.
is rarely influenced by political considerations.
【简答题】Joint Intervention
【简答题】干扰(co-intervention)
【单选题】The Declaration of Helsinki (2013, Article 33) by WMA declares that, "The benefits, risks, burdens and effectiveness of a new intervention must be tested against those of the best proven intervention(...
A.
Where no proven intervention exists, the use of placebo, or no intervention, is acceptable; or
B.
Where for compelling and scientifically sound methodological reasons the use of any intervention less effective than the best proven one, the use of placebo, or no intervention is necessary to determine the efficacy or safety of an intervention and the patients who receive any intervention less effective than the best proven one, placebo, or no intervention will not be subject to additional risks of serious or irreversible harm as a result of not receiving the best proven intervention. Extreme care must be taken to avoid abuse of this option.
C.
The placebo is effective.
D.
The placebo is cheap.
【简答题】captopril intervention test
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