With only a 5,000-gallon water tank, it didn’t take them long tounderstand that we had to use less water. (Para. 8) A: With only 5,000 gallons of water available, they soon realized that they had to save water. B: They soon realized that 5,000 gallons of water would sustain them for quite a long time.

程序中定义函数 float fun(float a, float b) { return a+b;} 则在调用之前应对该函数进行说明。以下说明中错误的是( ) A: float fun( float a,b); B: float fun(float b, float a); C: float fun(float, float); D: float fun(float a, float b);

下列函数的定义，正确的是( )。 A: float sum(x, {float x,y;……} B: float sum(float x,float ; {……} C: float sum(float x,float {……} D: float sum(floatx,float {……}

下面函数定义格式正确的是( ) A: float f(float x, float y); B: float f(float x;float y) C: float f(float x, y) D: float f(float x, float y)

float myadd(float a, float b) { return a+b;} 并将其放在调用语句之后，则在调用之前应对该函数进行说明。以下说明中错误的是【 】。 A: float myadd( float a,b) B: float myadd(float b, float a) C: float myadd(float, float) D: float myadd(float a, float b)