Official 28 Lec 3
答题结果:0/6
答题时间:0''
Question 3 of 6
Why does the professor think that it is inappropriate for certain wavelengths of light to be named “far-red”?

A.

Far-red wavelengths appear identical to red wavelengths to the human eye

B.

Far-red wavelengths have the same effects on plants as red wavelengths do

C.

Far-red wavelengths travel shorter distances than red wavelengths do

D.

Far-red wavelengths are not perceived as red by the human eye

我的答案:

正确答案:D

00:00
00:00
隐藏原文

译文