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【单选题】
9形成稳定的肽链空间结构,非常重要的一点是肽键中的四个原子以及和它相邻的两个α-碳原子处于A.
同一平面
B.
不断绕动状态
C.
可以相对自由旋转
D.
保持较远的空间距离
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【单选题】It is implied in the passage that the villager __________.
A.
wants a plentiful supply of trees
B.
wants fire wood
C.
wants to get money
D.
is not aware of the importance of environmental protection
【简答题】翻译:物质崇拜
【简答题】请翻译以下句子和段落: 1. The Chinese government on Wednesday stressed the importance for the country to step up efforts to develop emerging industries of strategic importance. 2. In an address to the 2010 Globa...
【多选题】Ethical clinical research has favorable risk-benefit, featuring:
A.
The IRB evaluation should consider all the risks the interventions pose, including physical, psychological, social, and economic risks. Are risks to subjects necessary and minimized? But minimizing risks can undermine social value and raise concerns of fairness.
B.
Are risks justified by benefit to individual subjects and/or the importance of the knowledge to society? To evaluate the risks of research, it is important to have reliable information on existing care for the participants.
C.
A trial may be risky in some places and potentially beneficial in others. Are benefits enhanced?
D.
Risk and benefit judgments rely on comparison to some baseline. For example, does a phase II study of a treatment that has been shown safe and offers a small chance of helping subjects qualify as prospect of benefit? Most commentators argue that IRBs should consider only the clinical or 'direct' benefits of research, not any indirect, inclusion, or financial benefits.
【单选题】This passage is mainly about ______.
A.
hoe Disney employees are trained
B.
the history and traditions of the Disney enterprises
C.
why Disney enterprises make a lot of money
D.
the importance Disney places on serving people well
【单选题】根据下面材料，回答{TSE}题. {TS}The author writes the first paragraph to
A.
introduce the traditions of a holiday.
B.
lead in the topic of the passage.
C.
exemplify the American holidays.
D.
highlight the importance of family.
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