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改写句子。1. that, see, can, cat, you?___________________________________2. think, Mrs. Lien’s, I, it’s_3. fireman, your, a, isn’t father?_4. him, go, ask, and, let’s_5. of, at, the, the, the, house, cat, is, top___________________________________

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阅读短文, 根据短文内容选择问题的正确答案. 答案填写大写字母This is Joy’s room. It’s a big room. There are some pictures on the wall(墙). There’s a desk and a chair in her room. The desk is near the window. Her bag and pencil case are on the desk. There are some pencils, a pen, and a ruler in the pencil case. Joy’s bed is near the desk. Her shoes and a ball are under the bed. Joy and her friend, Kate, are often in the room. They like the room very much.( ) 1. Joy’s room is _.A. not smallB. not big C. very old( ) 2. There _ in her room.A. is a desk and chairB. are some desks and chairs C. are some desks and a chair( ) 3. Joy’s pencil case is _.A. on the deskB. near the windowC. under the bed( ) 4. Her bed is _.A. near the desk B. near the windowC. under the desk( ) 5. ___ shoes are under the bed.A. Kate’sB. Joy’sC. Kate’s and Joy’s

改写句子。1. this, is, what, English, in, Miss Gao___________________________________2. please, is, what, name, your_3. you, spell, can, word, the, please_4. old, you, are, how_5. name, my, Li Lei, is___________________________________

静力学中的两个基本要素是（）。

A. 力和力对点之矩
B. 主矢和主矩
C. 力和力偶
D. 力对点之矩和力偶

静力学的研究对象是刚体。

A. 对
B. 错