If you know nothing about the famous program called Where are we going, dad?, you ______be living in a box!
A: would
B:can
C:must
D:need
对近海养殖业最具毁灭性灾害的是( )
直线y=3x+b与y轴的交点的纵坐标为﹣2,则这条直线一定不过____ 象限.
如图是甲、乙两种固体物质的溶解度曲线.下列说法错误的是( )