—What is 1/2 and 1/3 —It’s ().
- 首页
- 建筑九大员继续教育
-
1.—What is 1/2 and 1/3 —It’s ().
-
2.1 2 3 2 2 2 1 1 3 3 3 3 3 1 1 2 2 3 2 1 2 3 2 -1 <Enter>
输出结果是_____________________。
-
3.( )答案:( ).1 3 ( ).2 4 ( ).3 6 ( ).1 3 2 1 ( ).1 2 3 5 ( ).3 2 3 5 ( ).1 2 1 5 2
-
4.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.
-
5.已知A、( 1 2 ,1]B、( 1 2 , 3 2 )C、[1, 3 2 )D、[ 1 2 , 3 2 ]
-
6.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,
-
7.1 (1 2) (1 2 3) ... (1 2 3 4 ... 50)=
-
8.-1 0 1 2 3 4 5 6 7 8 8 80 1 2 3 0 1 2 3 3 2 2 3 4-1 0 0 1 2 3 1 1 2 3 4 50 1 2 1 2 1 1 1 1 2 1 2
-
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 =
-
10..-1 0 0 1 2 3 0 2 3B.-1 0 0 1 2 3 1 2 3C.-1 0 1 1 2 3 1 2 3D.-1 1 1 1 2 3 1 2 3