若有运算符:>、*=、==、%、sizeof,则它们按优先级(由低至高)的正确排列次序为()。
A.*=->==->>->%->sizeof
B.==->*=->>->%->sizeof
C.*=->>->==->sizeof->%
D.*=->>->==->%->sizeof
A.*=->==->>->%->sizeof
B.==->*=->>->%->sizeof
C.*=->>->==->sizeof->%
D.*=->>->==->%->sizeof
若有定义语句:doublea,*p=&a;以下叙述中错误的是
A.定义语句中的*号是一个说明符
B.定义语句中的P只能存放double类型变量的地址
C.定义语句中*p=&a把变量a的地址作为初值赋给指针变量P
D.定义语句中的,*号是一个间址运算符
编程设计一个简单的计算器程序,要求用户从键盘输入如下形式的表达式:
操作数1 运算符op 操作数2
然后,计算并输出表达式的值
指定的运算符为:
加()
减(-)
乘(*)
除(/)
代码如下,所给程序是否存在错误,若有,找出错误所在并改正。
A、default分支缺少break语句
B、第20行语句有错误,改成:
if (data2=0) printf("Division by zero!\n");
else printf("%f/%f = %f\n", data1, data2, data1/data2);
C、没有错误
D、第20行语句有错误,改成:
if (fabs(data2)<=eps) printf("division by zero!\n");
else printf("%f/%f = %f\n", data1, data2, data1/data2);
同时,第1行语句下方应加入
#include
#define EPS 1e-6
A.I want size 26.
B.We got various sizes.
C.This size is not for m
D.We want a small siz
The change in family size has affected the size of houses needed.
A.True
B.False
The factor which does NOT influence the size of the workforce is______.
A.the size of population
B.age distribution of the population
C.national economy
D.natural increase
The size of the audience ____________ (主要取决于)the weather.
At a rough estimate, Nigeria is______Great Britain.
A.three times the size
B.the size three time of
C.three times as much as
D.three times the size of
Class size will increase under the new scheme.
A.direction
B.context
C.system
D.environment
5.We have every size of shoe in ____.
A) storing B) stock C) sale D) shop
The red car is nearly ______ the green car.
A) 5 time the size of B) 5 times the size of
C) 5 time as size as D) 5 time as size of
It is four ______ Europe.
A) times as big as B) time as big as
C) time as size of D) time the size of