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【多选题】
以下说法正确的有( )。A.
1964年10月16日下午3时，中国的第一颗原子弹试验成功。
B.
1970年4月24日，在牺牲一年多后，中国第一颗人造卫星发射成功。
C.
1966年10月27日，中国第一颗装有核弹头的地地导弹爆炸成功!
D.
1967年6月17日，中国第一颗氢弹空爆试验成功。
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举一反三
【单选题】Many coaches and parents are in the habit of criticizing young athletes______.
A.
without realizing criticism may destroy their self confidence
B.
in order to make them remember life's lessons
C.
believing that criticism is beneficial for their early development
D.
so as to put more pressure on them
【简答题】食谱要符合幼儿的年龄 ，使幼儿能吃到多种多样的食物，把一日的食物（ ）标准恰当地分配到食谱中，以保证得到各种营养素和足够的能量。A. 定量
【简答题】变压器空载时,二次绕组( )感应电动势;二次绕组( )磁通势;负载运行时变压器中的电流是由( )决定的;
【简答题】学前教育机构的硬件建设和设施要符合幼儿年龄特点，符合国家规定的卫生安全标准。()
【多选题】“Teenager” means a person from 13 to 19 years old. Although they’re young, they have to make many important choices by themselves. Often teachers and parents cannot handle them because they don’t unde...
A.
Their teachers.
B.
Theirs parents.
C.
Their friends.
D.
Movie stars. 小题3: What does the passage mainly talk about? Everybody needs to make choices. Teenagers need to make choices by themselves. Teenagers know more about TV shows and music. Teachers and parents should help teenagers as much as possible.
【单选题】You re______understand the real meaning of love.
A.
too young to
B.
so young as to
C.
young enough to
D.
as young as to
【简答题】变压器空载时,二次绕组( )感应电动势;二次绕组( )磁通势;变压器中的电流是由( )决定的。
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