A:一百名学者在争鸣
B:一百家派别在争鸣
C:一场影响深远的思想文化运动
D:一场影响深远的民主政治运动
Diaoyu Islands __________ China ever since ancient times.
He that he knew nothing about computer, so he began to work hard at it.
豌豆种子子叶黄色(Y)对绿色(y)是显性,形状圆粒(R)对皱粒(r)是显性,某人用黄色圆粒和黄色皱粒进行杂交,发现后代出现4种表现型,对性状的统计如下图所示,据图回答问题。