Arctic explorers may catch colds when ______.
A: they are working in the isolated arctic regions
B: they are writing reports in terribly cold weather
C: they are free from work in the isolated arctic regions
D: they are coming into contact again with the outside world
A: they are working in the isolated arctic regions
B: they are writing reports in terribly cold weather
C: they are free from work in the isolated arctic regions
D: they are coming into contact again with the outside world
举一反三
- A) Arctic ice is a major source of the world's fresh water.[br][/br] B) The melting Arctic ice has drowned many coastal cities.[br][/br] C) The decline of Arctic ice is irreversible.[br][/br] D) Arctic ice is essential to human survival.
- Buck learned to survive in the arctic by ______. A: its primitive character B: becoming the strongest C: the law of club and fang D: adapt itself to the cold arctic
- The biggest difference of Arctic （北极）and Antarctic（南极） is A: The Arctic is the ocean surrounded by land, and the Antarctic is the land surrounded by ocean B: Arctic is bigger than Antarctic C: Arctic is warmer than Antarctic D: Upwelling is mostly at Arctic
- ______ is quite different from the Arctic marine fauna.
- Because of modern technology, some mountain areas are not isolated ______the outside world A: with B: from C: away D: off