霉变及病虫害超过标准规定的粮食应单独存放。（）
参考答案：对
You _____ the flowers more water so that they can grow well now.
A．would have given
B．might have given
C．must have given
D．should have given
for(int x=0，y=0；!x||y＜=5；y++，x=!x)语句执行的循环次数是( )。
A．0
B．7
C．6
D．无数次
