Official 47 Lec 4
答题结果:0/6
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Question 1 of 6
What is the lecture mainly about?

A.

Various kinds of winds

B.

Theories about recent changes in Earth’s climate

C.

The role of wind in regulating Earth's climate

D.

The role of air in limiting the amount of the Sun’s energy that reaches Earth

我的答案:

正确答案:C

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