题干

在科学活动周中,某校兴趣小组同学在(培养中学生基本科学素养的化学实验教学研究)课题组老师的指导下,将课本“测定空气中氧气的含量”实验装置(如甲图)改进为新的实验装置(如乙图),改进后的实验装置相对于原装置,以下评价不恰当的是(  )

A:反应容器体积小,药品消耗少

B:装置简洁,减少了甲图装置中导管引起的误差

C:白磷比红磷着火点高,使用更安全

D:容器内径相等,易准确推算出空气中氧气的含量

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答案(点此获取答案解析)

C

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