問題詳情

4. Unfortunately for those who try to make a living by catching sea cucumbers, the population ofsea cucumbers seems to undergo a cycle of boom and _____.
(A) bloom
(B) blur
(C) burst
(D) bust

參考答案

答案：D
難度：適中0.4
統計：A(0),B(0),C(2),D(2),E(0)