“酒”是指含有酒精、可饮用的液体,一般酒精含量为( ),它会令人兴奋、麻醉,具有一定的刺激性。 A: 0、5%-75、5% B: 0、5%-65、5% C: 5%-75、5% D: 5%-65、5%

酒的定义中关于酒精含量有明确的规定,即其含量应在()度之间。 A: 1~45 B: 15~65 C: 0、5~75、5 D: 0、5~65

intx=5,y=8,z=7;表达式z=!(x>y)||(x=1,y=3)计算后的结果 A: x=1,y=3,z=1 B: x=1,y=3,z=0 C: x=5,y=8,z=0 D: x=5,y=8,z=1

x=5,y=8执行语句z=x%y后,z是() A: 0 B: 5 C: 8 D: 1

若x=5,y=11,z=0,有如下程序段，那么 if (x<0) x=y+1; else if (y>0) y=x+1; else x=x+1; z=z+1; x=,y=,z=

平面应变问题，如果平面在XY平面上的话，那么 。 A: σz=0, εz=0 B: σz=0, εz≠0 C: σz≠0, εz=0 D: σz≠0, εz≠0

下列程序的运行结果是（ ）。t = 0 while t &lt; 5: print(t, " is less than 5") t = t + 1else: print(t, " is not less than 5") A: 0 is less than 51 is less than 52 is less than 53 is less than 54 is less than 55 is not less than 5 B: 1 is less than 52 is less than 53 is less than 54 is less than 55 is less than 55 is not less than 5 C: 0 is less than 51 is less than 52 is less than 53 is less than 54 is less than 5 D: 1 is less than 52 is less than 53 is less than 54 is less than 55 is less than 5

下面的C语言代码，输出结果是： int x, y, z; y=1;z=0; if ( z < 0 ) { x = 3; } else if ( y = = 0 ) { x = 5; } else { x = 7; } printf("x=%d"，x);

若x=5,y=11,z=0,有如下程序段，那么if (x&lt;0)x=y+1;else if (y&gt;0)y=x+1;elsex=x+1;z=z+1;(1) x=( )(2) y=( )(3) z=( )

利用行列式的性质计算下列行列式的值1 2 0 0 02 5 0 0 0 9 8 1 2 37 6 4 5 65 4 7 8 9