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【单选题】
关于小肠的运动，错误的概念是( )。
A.
小肠的运动形式包括紧张性收缩、分节运动和蠕动
B.
分节运动是以环行肌为主的收缩和舒
C.
分节运动可使食与消化液充分混合
D.
分节运动的频率小肠上部较低，下部较高
E.
蠕动是一种推进性运动
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【判断题】模式匹配简单算法时间复杂度是O(m*n)。
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【单选题】听力原文：M: What time are you leaving tomorrow? W: You mean to go to the bank? M: Yes, I'd like to go with you if I may. W: I'd be glad to take you, I plan to leave here about nine-thirty. What does the m...
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A.
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B.
Because she is going to see her mother.
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Because her grandmother will come to live with them.
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