五月机经里有这样一道题 大家讨论下 选a好还是选b
despite protection for more than 50 years, which includes A and B, whales remain low in population.
A.which includes A and B, whales remain low in population
B.which has included A and B, population of whales remains low
个人认为选a, 但是楼住记得他当时选的是b.
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