关于区域高效益的综合发展阶段的叙述，错误的是（      )

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    Different weather makes people feel different．It influences health，intelligence and feelings．
    In August，it is very hot and wet in the south the US．People there have heart trouble and other kinds of health problems during this month．In the Northeast and the Middle West，it is very hot in the summer and very cold in the winter．People in these states have more heart trouble after the weather changes in February or March．
    The weather can also influence intelligence ． For example，in a 1983report by scientists，IQ(智商)of a group of students was very high when a very strong wind came, but after the strong wind,
    Their IQ was 10% lower than before. The wind can help people have higher intelligence. However,very hot weather can make it lower. Students in many schools of the US often get worse in exams(考试)in the hot months of the year(July and August).
    Weather also has a strong influence on people's feelings．Winter may be a bad time for thin people．They usually feel cold during these months．They might feel unhappy during cold weather．But fat people may have a hard time in hot summer．At about 18℃people become stronger．Low air pressure may make people forgetful．People leave more bags on buses and in shops on low-pressure days．
    Are you feeling sad，tired，forgetful，or unhappy today？It may be the weather's problem．

阅读下列材料，回答问题。

材料一：下列歌曲是江西文工团采集到的，至今还在江西流传，依然散发着当年的活力。七月三十一，夜半闹嚷嚷，手榴弹、机关枪，其格格，其格格响啊，响到大天亮。莫不是国民党又在兵变，莫不是伤兵老爷又在闹城？啊噢嘿！噢嘿！噢嘿！我想到就害怕。

八一大天亮，百姓早起床，昨夜晚，机关枪，其格格，其格格响啊，它是为哪桩？原来是共产党武装起义，原来是红带兵解决国民党，啊嘻哈！嘻哈！嘻哈！我快活笑嘻哈！

材料二：今年确实是中日邦交正常化45周年，但同时也是“卢沟桥事变”80周年。这两个纪念日代表了两条截然不同的道路，一条是和平与友好，一条是战争和对抗。……几十年后的今天，我们看到日本国内仍然有些人还在这两条道路之间摇摆不定，甚至企图开历史的倒车。我们希望一切爱好和平的日本人民能够在这个重要的年头，把握好国家前行的方向。——2017．3．8王毅就“中国的外交政策和对外关系”答中外记者问

下列各句中，标点符号使用正确的一项是 (　　)

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