A:single out
B:catch o
C:stop off
D:figure out
请说出尼摩船长与阿龙纳斯在海底环球旅行的路线。
下列物质中,通过简单扩散方式进入小肠绒毛上皮细胞的是( )
I don't like the story book, because there is in it.