选出句子中所包含的信息( )
A:People were angry with the players.
B:People were happy to join the players.
C:People were excited to see the players.
当你想知道别人去哪儿里时,你问:
如图所示,为钠、镁、铝三种常见金属的原子结构示意图, 小明在资料中又找到下列粒子的结构示意图,请你分析以下的叙述中正确的是()
果蝇的体细胞中含有8条染色体,则果蝇的生殖细胞中染色体的数目为( )