能够完全匹配字符串“kick”和“kick-off”的正则表达式包括： A: w{4}-w{3}|w{4} B: w{4}|w{4}-w{3} C: S+-S+|S+ D: w*?-?w*|w*

由欧拉公式，e^(wτ+π/4)j的实部是（） A: tg(wτ+π/4) B: sin(wτ+π/4) C: cos(wτ+π/4) D: ctg(wτ+π/4)

The two dimensions, according to which the political systems can be assessed, collectivism-individualism and democratic-totalitarian are independent of each other.W4

29. Of the 4 books, one is written by a young writer and ___ by an old one. A: other three B: three other C: the other three D: the three other

Set int a=1, b=2, c=3, d=4, w; after executing the following statement, the value of w is ().w=(a<b)?a :b;w=(w<c)?w:c;w=(w<d)?w:d; A: 1 B: 2 C: 3 D: 4

W18Cr4V中C、W、Cr、V的含量大约为（）。 A: 0.1%，18%W，4%Cr，1%V B: 1%，1%W，18%Cr，4%V C: 1%，18%W，4%Cr，1%V D: 0.75%，18%W，4%Cr，1%V

如图所示电路，则电压源发出的功率等于：（ ____）[img=167x103]18033abb0262553.jpg[/img] A: 1 W B: -4/3 W C: 4/3 W D: 1/3 W

int w=1,x=2,y=3,z=4;则表达式w>x?w:y A: 4 B: 3 C: 2 D: 1

若“w=1，x=2，y=3，z=4”，则条件表达式“w>x?w:y A: 1 B: 2 C: 3 D: 4

设有以下定义: int w[3][4]={{0,1},{2,4},{5,8}}; int(*p)[4]=w; ,则数值为4的表达式是().