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(A) Once depleted, most shark populations are slow to recover.
(B) Over the past years there have been a couple of very positive developments.
(C) A handful, including the great white shark, may ultimately face total biological extinction.
(D) It is estimated that roughly 100 million sharks are saved worldwide by fishermen every year.

答案：登入後查看
統計： A(88), B(29), C(35), D(8), E(0) #418751

詳解 (共 2 筆)

#1519875

（A）一旦枯竭，大多數鯊魚群體恢復緩慢。 （B）過去幾年裡出現了兩個非常積極的發展。 （C）少數，包括大白鯊，最終可能面臨全面的生物滅絕。 （D）據估計，漁民每年在全世界大約保存1億隻鯊魚。

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#2213023
一但鯊魚數量減少，鯊魚的復育工作會變得很...
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