The biggest problem for most plants, which______just get up and run away when threatened, is that animals like to eat them.
A:shan't
B:can't
C:needn't
D:mustn't
如图是血液流经某器官的示意图,下列表述正确的是( )
它“以人文主义思想为指导,提倡以人为本,肯定人性,肯定现世生活”,它“猛烈冲击了封建神学”,被认为是冲破黑暗中世纪的一道“曙光”。“它”是指( )