【单选题】下列叙述错误的是( )。
A.
指令字在程序段中的顺序没有严格的规定,可以任意的顺序书写
B.
程序段中的每个指令字均以字母(地址符)开始,其后再跟数字或无符号的数字
C.
指令字在程序段中的顺序有严格的规定,必须按顺序书写
【单选题】宁夏平原(灌溉农业)发展种植业需要改造的主要自然因素是( )
【单选题】设有下列程序段:static char b=2;void Y(){ static float d=4;… }int a=1;void X(){ int c=3;… }关于程序段中各变量的属性,以下叙述中错误的是( )。
A.
a是全局变量,函数X可以访问,函数Y不能访问
【单选题】We may infer from the fourth paragraph that ______.
A.
the PufferSphere is used to replace the campfire
B.
the PufferSphere can display more than two films at the same time
C.
the PufferSphere is helpful to the atmosphere of fashion shows
D.
campfire is often shown on the PtffferSphere during music events
【单选题】In 1919, the May Fourth Movement ________, beginning with a large-scale new cultural movements
A.
231. In 1919, the May Fourth Movement ________, beginning with a large-scale new cultural movements in China. A.happened
【单选题】当今世界安全形势总体是和平的,局部战乱总体缓和,但()紧张总体稳定,局部还是在动荡。
【单选题】In the fourth paragraph the writer suggests that reports may be helpful if
A.
a client is dissatisfied with your advice.
B.
they are structured like the minutes of meetings.
C.
there is a disagreement about what happened.
D.
they outline a range of possible future outcomes.
【单选题】下列程序段中,有错误的是( )。
A.
int f() { int x; scanf("%d", &x); return x++, x+5; }
B.
int f2(int x) { return (x>1?printf("Y"): putchar('N')); }
C.
int main() { float a=2.6 , b; b=max(2.1, 3.6)=a++; printf("%f", a+b); }
D.
void change(int x, int y) { int t; t=x; x=y; y=t; }
【单选题】在一元量化逻辑中, ( ∧ )是( )的标准符号化。
【单选题】The fourth paragraph tells us that bees may be harmed by ultra-violet light.