2019年四川省绵阳市中考化学试卷(学生版)
2019年四川省绵阳市中考化学试卷一、选择题(每小题3分,每个小题只有一个选项最符合题目要求)1.(3分)化学对科技发展具有重要作用,下列说法错误的是( )A.尖端技术采用液氮获得低温,利用了氮气的化学性质B.用作新型电池电极材料的石墨烯与金刚石组成元素相同C.中国具有自主知识产权的大飞机C919机身主体材料是铝合金D.通过改变钢铁组成,表面覆盖保护层,可以确保港珠澳大桥使用寿命2.(3分)冰毒是一种毒品。吸食初期有多语,对种种刺激过敏、焦躁、抑郁循环性病态。继之,在幻听、幻视的错乱状态下,呈现被杀、被跟踪、嫉妒等多种妄想症,我们应该远离毒品。某种冰毒的化学式为C10H14NO2Cl,下列关...
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