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【简答题】
输入数据 n 和 x ,计算级数和 s=1+x+x 2 /2!+x 3 /3!+ ... +x n /n! 。
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皮皮学刷刷变学霸
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【单选题】听力原文：W: Can you figure out what's wrong with John? He doesn't talk to anyone since last week? M: He's had a terrible time with his wife. But it has something to do with his parents. Q: What conclusion...
A.
He has some trouble with his parents.
B.
His parents had a quarrel.
C.
He and his wife might have had a quarrel.
D.
His wife and his parents might have disagreed with each other.
【单选题】听力原文：M: Hello, Marry. What's up with you? W: Oh, Tom. It's my landlady again. M: You're always in trouble. What is it this time? W: You see, she left a note for me. Just read it. M: Well, did you leav...
A.
Her difficulties at her house.
B.
Finding a place to live.
C.
The parties she went to.
D.
Her friend's house.
【单选题】听力原文：M: So what's your trouble? W: Well, doctor, ,I haven't been feeling well lately. My biggest problem is that I'm having trouble sleeping. M: Have y6u tried any of the sleeping medications availabl...
A.
Her taking improper sleeping medications.
B.
Her having unusual stress lately.
C.
Her having a poor digestion.
D.
Her having insufficient physical activities.
【单选题】听力原文：M: So, what's your trouble? W: Well, doctor, I haven't been feeling well lately. My biggest problem is that I'm having trouble sleeping. M: Have you tried any of the sleeping medications availabl...
A.
Taking improper sleeping medications.
B.
Having unusual stress lately.
C.
Having a poor digestion.
D.
Having insufficient physical activities.
【简答题】氧化还原滴定法是以( )反应为基础的滴定分析法。
【单选题】听力原文：M: So what's your trouble? W: Well, doctor, my biggest problem is that I'm having trouble sleeping. M: Have you tried any of the sleeping medicine available? W: I've tried one or two, but they do...
A.
Taking improper sleeping medicine.
B.
Having unusual stress lately.
C.
Having digesting problem.
D.
Having poor sleeping.
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