题目

下图是中华人民共和国某时期政权组织结构示意图。 从图中看出,中央人民政府委员会(  ) ①接受中国人民政治协商会议全体会议的领导 ②具有新民主主义政权性质 ③依据《中华人民共和国宪法》履行职权 ④领导完成了社会主义改造‍ A.①②       B.②④       C.①③       D.③④ 答案：A 解析：题中示意图体现了中国人民政治协商会议为中国的最高权力机关,此时应为1949年至1954年,故①正确;此时中国的国家性质为新民主主义社会,②正确;③应出现于 1954年宪法颁布后,这一时期国家的最髙权力机关是全国人民代表大会,排除;④出现于1956年底,故答案为A项。 【知识梳理】1949年10月—1954年9根据短文内容，从每小题A、B、C三个选项中选出一个最佳答案。Mobile phone use among children has become a problem for the school this year. Several children have got mobile phones as Christmas gifts, and more students will want them.Mary Bluentt, an official, said mobile phone use is a distraction（分心的事）to students during school hours and it also gives teachers so much trouble in their classrooms. Teachers were also saying that sometimes students might use phone messages to cheat during exams.She said some schools had tried to ban（禁止）mobile phones. Some parents felt unhappy because they couldn't get in touch with their children.Many teachers said students should not have mobile phones at school, but if there were special or good reasons（理由）, they could leave their phones at school office. They also said there were many reasons why the students shouldn't have mobile phones at school: they were easy to lose and were a distraction from studies.Many people say that they understand why parents would want their children to have phones, but they think schools should let the students know when they can use their mobile phones.【1】Some middle schools in Australia have stopped students from carrying mobile phones .A. because they are studentsB. because they are childrenC. when they are at school【2】We know from the passage that some children get mobile phones from .A. some mobile phone users B. their parents and friendsC. the makers and sellers【3】The underlined word "cheat" means in this passage.A. 查询 B.作弊 C.聊天【4】Some parents felt unhappy because they