試題詳解

37. Which of the sentences below best expresses the essential information in this highlighted sentence? “One potential problem is that opening the mouth to breathe detracts from the streamlining of these fishes and tends to slow them down.”
(A) These fishes often have a problem opening their mouths while swimming.
(B) The streamlining of these fishes prevents them from slowing down.
(C) The streamlining of these fishes tends to slow down their breathing.
(D) Opening the mouth to breathe can reduce the speed of these fishes.