3. We should not eat a wild mushroom unless we are absolutely sure that it is harmless and _____.
(A) certain
(B) audible
(C) edible
(D) reserved

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統計： A(5), B(6), C(75), D(6), E(0) #2516705

詳解 (共 1 筆)

#4771025

certain某些     

audible可聽見的

edible 可食用的

reserved 預定的 、冷淡的

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