问题
单项选择题
Among the following statements, which is tree about sea horse().
A. The sea horse has a long snout that is not convenient for sucking.
B. Sea horses have no scales at all.
C. The sea horse is unable to grasp sea grass or coral.
D. Sea horse can move very fast over long distance.
答案
参考答案：B
解析：
[难点] 该题需要综观全文。如果听出“海马的嘴就是利于吸食”，则容易判断选项a错误。听出“海马尾巴的作用就是抓取物体”，则可以判断选项c错误。听到“海马并不是游泳健将”，可以判断海马移动并不很快，因此选项d错误。选项b正确。