以下不能说明细胞全能性的实验是 ( )
A:胡萝卜韧皮部细胞培育出植株
B:紫色糯性玉米种子培育出植株
C:转入抗虫基因的棉花细胞培育出植株
D:番茄与马铃薯体细胞杂交后培育出植株
下列语句中,不是描述天气现象的是( )
The question of __________ English will keep on changing in the future is easy __________ since it is certain that this process will continue.