There is a great deal of evidence _____ that music activities engage different parts of the brain. [ ]

A. indicate

B. indicating

C. to indicate

D. to be indicating

下列程序的输出结果为______。
#include＜iostream.h＞
void Func(char ch)

switch(ch)

case ’A’:case ’a’:
cout＜＜"优秀"＜＜endl;
case ’B’:case ’b’:
cout＜＜"良好"＜＜endl;
break;
case ’C’:case ’c’:
cout＜＜"及格"＜＜endl;
break;
default:
cout＜＜"不及格"＜＜endl;


void main( )

char ch1=’b’
Func(ch1);
Func(’A’);