问题
单项选择题
What is the purpose of the sea horse’s dorsal and pectoral fins().
A. They allow it to maneuver effectively in a small areas.
B. They allow it to swim quickly over long distances.
C. Dorsal and pectoral fins have no function in sea horse.
D. Their multi-colored fins attract shrimp and other food.
答案
参考答案：A
解析：
[难点] 该题难度较大。题干关键词“dorsal and pectoral fins”对于考生来说不熟悉，但其实就是文中所提及的“fins on the back”和“chest fins”，需要考生自．己推理。另外正确选项a也并不是从原文可以直接听取的，是需要依靠逻辑推理的。选项b只是涉及了部分内容。