若有定义：double a, b, c;能正确给a,b,c输入数据的语句是( ) A: scanf(" %lf %lf %lf",&a, &b, &c ); B: scanf(" %f %f %f",&a, &b, &c ); C: scanf(" %lf %lf %lf",a, b, c ); D: scanf(" %lf %lf %lf" &a, &b, &c );

离子选择电极法测定范围为（） A: 10~10mol/LF B: 10~10mol/LF C: 10~10mol/LF D: 10~10mol/LF E: 10~10mol/LF

It is possible — and practical — to reduce our reliance on technology.

） void main() { double x,y; scanf('%lf%lf',

Emerson's ______ is believed to be America's "Intellectual Declaration of Independence." A: ture B: e American Scholar C: lf-reliance D: lden

11) The company makes a very ______ product. (rely, reliance, reliable)

能把值3输入给变量a,4输入给变量b,5输入给变量c的语句是( )。[br][/br](2.0) A: scanf("%d%f%lf", &a,&b,&c); B: scanf("%d%lf%lf", &a,&b,&c); C: scanf("%d%f%f", &a,&b,&c); D: scanf("%lf%lf%lf", &a,&b,&c);

一个逻辑文件LF最多可连（）个I/O或LF。

__________________(double,double);main(){doublex,y;scanf("%lf%lf",&x,&y);printf("%lf",max(x,y));}doublemax(doublea,doubleb){return(a>b?a:b);}

若有定义： double a,b,c；能正确给a,b,c输入数据的语句是（ ）。 A: scanf("%lf %lf %lf" &a,&b,&c); B: scanf("%f%f%f",&a,&b,&c); C: scanf("%lf %lf %lf",a,b,c); D: scanf("%lf %lf %lf",&a,&b,&c);