A:I have heard or have see
B:have I heard or see
C:I have heard or see
D:did I hear or see
以下关于细胞生命历程的说法错误的是( )
符合如图漫画《在线算命》寓意的是( )
某种奖券的中奖率为1%,买100张不一定能中奖.(判断对错).