顺序练习
话题练习
题型练习
口语评分
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阅读机考
听力机考
口语机考
A.
His theory about why the ancient Mayan civilization disappeared
B.
Clues found in the ancient writing at the pyramid temple
C.
Information from people who live in the region
D.
The location of light-colored spots in satellite photos
正确答案:D
译文