题目

    American schools begin in September after a long summer vacation (假期). There are two terms in a school year: the first term is from September to January, and the second is from February to June. Most American children go to public schools (公立学校). High school students take only four or five subjects at a time. They usually go to the same classes every day, and they have an assessment (评价) for every class. After class they have many activities. After high school, many students go to college. 1．Most American children start school life in         . A．September 如图是我国某地区典型植物示意图,这种植物高度不足50 cm,但根系在20 m以上。据此回答题:【小题1】根据地理环境的整体性,以下景观最有可能位于该地区的是(　　)【小题2】制约该地区可持续发展的主要环境问题是(　　)A．荒漠化B．能源紧缺C．水土流失D．洪涝灾害