Official 3 Lec 1
答题结果:0/6
答题时间:0''
Question 2 of 6
What does the professor imply might cause a decrease in the hummingbird population?

A.

An increase in the ecotourism industry

B.

An increase in the use of land to raise crops and cattle

C.

A decrease in banding studies

D.

A decrease in the distance traveled during migration

我的答案:

正确答案:B

00:00
00:00
隐藏原文

译文