题目内容

若程序中已包含头文件stdio.h,以下选项中,正确运用指针变量的程序段是( )。

A. int*i=NULL;
B. float*f=NULL;
C. chart='m',*c=&t;
D. long*L
E. scanf("%d",i); *f=10.5; *c=&t; L='\0';

查看答案
更多问题

下列属于溶解气体的是()。

A. N2
B. O2
C. H2S
D. C2H2

应纳所得税额等于( ),

A. 利润总额
B. 主营业务利润士调整项目
C. 利润总额±调整项目
D. 营业利润±调整项目

设有如下说明: typedef struct int n; char c;double x;STD; 则以下选项:能正确定义结构体数组并赋初值的语句是( )。

A. STDtt[2]=1,'A',62,2,'B',75;
B. STDtt[2]=1,"A",62,2,"B",75;
C. struet tt[2]= 1,'A',2,'B';
D. struct tt[2]=1,"A",62.5,2,"B",75.0;

The author thinks that pull factors______. A) are all related to economic considerations C) include a range of considerations B) are not as decisive as push factors D) are more important than push factors

A. The author thinks that pull factors______.
B. are all related to economic considerations
C. are not as decisive as push factors
D. include a range of considerations
E. are more important than push factors

答案查题题库