—I think students should have mobile phones to call their parents.
— . They often use them to play games instead.
A:I hope so
B:I don't agree
C:Good idea
下图为“1959~2009年秦岭山地1月0℃等温线位置变化图”。回答下面小题
Boys and girls, what ______ can you do in the meeting?
关于生物,下列说法正确的是( )