题目内容:
Inwhalehunters'eyes,whales'numberscanbeadjustedby___________. A.people'sgrowingawarenessofthebalancebetweenecologyandbusiness
B.people'sprotectionofendangeredspecies
C.aflexiblebiologicalsysteminwhichallspeciessurvive
D.thechangeofbalancebetweenmarketneedandtheamountofwhales
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答案解析: