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搜题
【判断题】
力偶的合力等于零。A.
正确
B.
错误
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】根据句意及首字母或汉语提示完成句子。 1. Without my p _____, don't touch my things. 2. This kind of machine can be o _____ easily, so you don't need much skills to do the job. 3. Qufu in Shandong is an e _____ place for...
【简答题】化学药品可通过食物链转移,研究药剂在尸体和尸体上的昆虫之间的( )规律,可为判断死亡原因提供证据。
【简答题】若α与β互补，且α∶β=4∶5，则α=（ ），β=（ ）。
【单选题】下列关于cDNA叙述正确的是( )
A.
与模板链互补的DNA
B.
与编码链互补的DNA
C.
与任一DNA单链互补的DNA
D.
与RNA互补的DNA
E.
指RNA病毒
【多选题】Which of the following statements are CORRECT about the Assignments ?
A.
It means I will have to finish writing the book report on time.
B.
It means I will have to finish the online tests on time.
C.
It means I will have to prepare the post presentation seriously.
D.
It means I will have to log in online and do the online discussion.
E.
It means I should not be late for the class.
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