顺序练习
话题练习
题型练习
口语评分
写作评分
阅读机考
听力机考
口语机考
A.
To identify the evidence used to determine how the rivers flowed
B.
To explain why the rivers could easily dry out
C.
To suggest that the sediment was once fine sand
D.
To suggest that the geological record might be flawed
正确答案:A
译文