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答案:
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1.s(3 1图7-59
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2.图1图2图3图4
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3.(s 3)(3)Wk(s)=s 1)(s 5)(s 10)
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4.(1)0.8s;2.5m/s(2)3.5m;-0.5m(3)1.6s(4)图见解析;
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5.—What is 1/2 and 1/3 —It’s ().
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6.已知数列{aS n , a 1 =- 2 3 ,满足 S n 1 S n 2= a n (n≥2) ,计算S 1 ,S 2 ,S 3 ,S 4 ,并猜想S n 的表达式.
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7.下列各组量子数正确的是( )A.n=3, l=2, m=0, m s =1/2B.n=2, l=2, m= -1, m s = -1/2C.n=4, l=1, m=2, m s = -1/2D.n=3,
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8.设S=1 1/2 1/3 … 1/N,求使S不超过6的最大的N值。
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9.A.n = 1, l = 0 ,m = 0 , s = +1/2B.n = 2, l = 1, m = 0 , s = +1/2C.n = 3, l = 2 ,m = 1, s = +1/2D.n =
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10.输入正整数n,计算s = 1/1! + 1/2! + 1/3! + ……+ 1/n!的值。