单相半桥逆变器(电压型)的每个导电臂由一个电力晶体管和一个()组成二极管。
A、串联
B、反串联
C、并联
D、反并联
参考答案:D
若有以下说明和语句: int c[4][5],(*p)[5]; p=c; 能够正确引用c数组元素的是( )。
A.p+l
B.*(p+3)
C.*(p+1)+3
D.*(p[0]+2)
It was for that reason, I suppose, ____ the book took a long time to come out.[ ]
A. why
B. so
C. that
D. because