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【简答题】
平衡力系是合力等于 的力系;物体在平衡力系作用下总是保持 或 运动状态; 是最简单的平衡力系。
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举一反三
【单选题】I’m planning to take listening and speaking this term,Can you recommend a professor?
A.
If I were you,I would choose the course .
B.
Of course,Dr.Smith.
C.
I don’t like the professor.
D.
I’m afraid I must go now .
【单选题】I’m planning to take Listening and speaking this term. Can you recommend a processor?
A.
If I were you,I would choose the course.
B.
Of course, Dr.Smith.
C.
I don’t like the professor.
D.
I’m afraid I must go now.
【简答题】( 111100 )2=(________)10
【简答题】Joe: Hello, Jack. Jack: Hello, Joe. (3) ___________________? Joe: (4)______________, thanks. (5)______________? Jack: (6)______. Well, you see, I’m planning to take chemistry this semester. (7)_______...
【简答题】拟蕨植物(fern allies)
【简答题】Nancy: Hi, Dave. David: (1) _____, Nancy. (2) _________________? Nancy: (3) ___________. (4) ______________? David: Good, thanks. You know, I’m planning to take Listening and Speaking this semester. (...
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