Given that two thirds of the Earth's surface is water and that marine life lives at all levels of the ocean, the total three-dimensional living space of the ocean is perhaps 100 times (30) _____ than that of land and contains more than 90 percent of all life on Earth even though the ocean has fewer distinct species.
* Đáp án
C
* Hướng dẫn giải
Đáp án C
Kiến thức về so sánh
So sánh gấp bội :
số gia hội (twice/three/four ...+ as many/much + N + as..../times + greater than +,...)