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【判断题】
酶的共价修饰具有级联放大效应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
【单选题】The phrase "common room" in "He spends his days there writing, seeing students or taking tea with them in the drab common room" means
A.
a room with toilets that is in a public place, for example in a restaurant
B.
a room in a school or college where students or teachers can sit together and talk when they are not working.
C.
a conferencd room
D.
a classroom that can accomodate a great many students
【简答题】请举出小学数学中运用集合思想的例子,并与其他同学进行交流。
【简答题】The phrase “No, please” so common _______ would sound most unusual in Britain itself.
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