【学术讲座】#59
Question 3 of 4
What point does the speaker make about plants in aquariums?

A.

They should be the same plants as those found in streams in India.

B.

They should be orange-red to match male Scarlet Badis.

C.

They help keep male Scarlet Badis separate from one another.

D.

They are the primary food source for the Scarlet Badis.

正确答案:C

显示答案
进入答题
00:00
00:00
隐藏原文

译文

精听文本