Official 36 Lec 1
答题结果:0/6
答题时间:0''
Question 2 of 6
Why does the professor mention that the Moon lacks a magnetic field?

A.

To point out the dangers inherent in mining for helium-3 on the Moon

B.

To point out a flaw in the theory that helium-3 can be found on the Moon's surface

C.

To explain why it was difficult for astronauts to detect helium-3 on the Moon

D.

To explain why it is likely that there are large amounts of helium-3 on the Moon

我的答案:

正确答案:D

00:00
00:00
隐藏原文

译文