海蜇是湛江常见的海洋动物,也是吴川的三宝之一,它属于( )
A:原生动物
B:腔肠动物
C:软体动物
D:节肢动物
I'm f____because the people I'm working with and learning from are true experts in their fields.
____
赤道穿过哪些大洲的大陆部分( )