All the members thought that the plan should be changed, but he still ________ his own idea.
A:insist on
B:insist
C:stuck to
D:kept
“始祖鸟”化石的发现,为生物进化提供了典型证据,它是介于哪两类生物之间的过渡类型?( )
你知道古代人民吃的食物是如何演变的?