It can be inferred from the passage that the ice would not be flat if______. A. there were no lake underneath B. the lake were not so big C. Antarctica were not so col

Đáp án A

Có thể suy ra từ bài đọc rằng lớp băng sẽ không bằng phẳng nếu

A. không có hồ ở bên dưới                                      B. hồ không quá lớn

C. Bắc Cực không quá lạnh                                      D. Sóng radio không được sử dụng.

Dẫn chứng: It was not until much more recently that data collected by satellite made scientists aware of the tremendous size of the lake; the satellite-borne radar detected an extremely flat region where the ice remains level because it is floating on the water of the lake.