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【单选题】
（ ）是蛋白质分子中氨基酸之间的主要连接方式A.
酰胺键
B.
二硫键
C.
链内二硫键
D.
肽键
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皮皮学刷刷变学霸
举一反三
【单选题】Text1 1) What are the best decisions to make when people are confronted with emergency?
A.
Thought-through decisions that have been rehearsed beforehand
B.
Decisions made in negotiation.
C.
Decisions made by the team leader.
D.
Decisions made on the basis of a plan.
【单选题】According to studies, when people plan specific actions in advance,______.
A.
there is no doubt that they will fulfill their dreams
B.
they have greater possibilities of reaching their goals
C.
they are able to get their work done more efficiently
D.
they are more likely to persist in face of difficulty
【简答题】To Americans, punctuality is a way of showing respect for other people’s time. Being more than ten minutes late to an appointment usually calls for an [S01] _______, and maybe an explanation. People w...
【单选题】女, 23 岁。新婚,月经规律,经量较多,尚无生育计划。最应该建议的避孕方法是
A.
复方短效口服避孕药
B.
宫内节育器
C.
长效避孕针
D.
安全期避孕
E.
体外排精
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