阿摩線上測驗
50 Which of the following statements is true?
(A) All of the US bird species are declining.
(B) Long grass provides ideal habitats for birds.
(C) Mowing can help birds to build their nests.
(D) In Hawaii 71 bird species have disappeared for three decades.
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統計： A(7), B(61), C(13), D(14), E(0) #1217635
統計： A(7), B(61), C(13), D(14), E(0) #1217635
