In practice, this is an advantage to the aeroplane, which is already at a good height when it reaches the polar region and so does not to climb, while at the same time cold air keeps the clouds down low. (Passage 1 )
【单选题】Everyone of us lives and works on a small part of the earth's surface, moves in a small circle, and of these acquaintances knows only a few intimately. Of any public event that has wide effects we see...
A.
man's life is also insignificant.
B.
man's opinions can not be accurate at all.
C.
human observations in general are all but partial.
【单选题】Everyone of us lives and works on a small part of the earth's surface, moves in a small circle, and of these acquaintances knows only a few intimately. Of any public event that has wide effects we see...
A.
man's life is also insignificant.
B.
man's opinions can not be accurate at all.
C.
human observations in general are all but partial.