- The electric fan can ___blow away the terrible smell in the room, can it?

- It’s hard to say, but we can have a try.

A．quickly

B．easily

C．hardly

D．finally

水绵和衣藻同属藻类的主要原因是（　　）

A．都有细胞壁和细胞核

B．是生活在水中的植物

C．都是无根、茎、叶分化的植物

D．都有细胞膜和细胞核