13. The ozone layer ______ all the animals and plants on earth from the direct UV radiation from the sun.
(A) escapes (B) protects (C) distinguishes (D) dissuades
13. The ozone layer ______ all the animals and plants on earth from the direct UV radiation from the sun. (A) escapes (B) protects (C) distinguishes (D) dissuades 答案:B 13.臭氧層保護地球上的所有動物和植物免受來自太陽的直接紫外線輻射。 (A)逃脫 (B)protects 保護,防護[(+against/from)];【經】(藉著對進口商品徵收關稅或設限等)保護(本國產業)