All of the following are true about the 1970 survey of Antarctica EXCEPT that it________.
A. was conducted by air
B. made use of radio waves
C. did not measure the exact size of the lake
D. was controlled by a satellite
* Đáp án
* Hướng dẫn giải
Đáp án : D Những nghiên cứu gần đây mới dùng vệ tinh, không phải nghiên cứu năm 1970: (dòng 3 đoạn 2) it was not until much more recently that data collected by statellite…