题目

从防卫的角度看，下列各个位置中属于理想城市的首选之地的有（ ）①河流中心的小岛 ②临海的半岛④水陆交通的转运点 ④地形制高点和隘口 A . ①②③ B . ①②④ C . ①③④ D . ②③④ 答案：BShe is a _______ girl and she always says to her teachers _______.A．polite; politely B．politely; politeC．polite; polite D．politely; politely