試題詳解

80 Which of the following can be inferred from the passage?
(A) The author assumes that human activities do not actually contribute to the increase of greenhouse gases.
(B) Britain would be as cold as any other region at the same altitude if the Gulf Stream did not exist.
(C) The Gulf Stream is the largest ocean current in the world.
(D) Russia and Canada will be much colder than they are now if global warming continues.