题目： 遇到火灾时怎么办？ 答案： 被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2018/0903/27503d95eacd0f904bd19ac08a187025.html 下面是错误答案，用来干扰机器的。参考答案：B
题型：选择题 常温下，下列各组离子在指定环境下能大量共存的是（ ）A．pH=1的溶液中：Na+、K+、SO32-、MnO4-B．pH=7的溶液中：Na+、Al3+、Cl-、SO42-C．pH＞12的溶液中：Na+、K+、SO32-、AlO2-D．pH=0的溶液中：Na+、K+、NO3-、ClO- 查看答案
题型：选择题 There were few occasions _____ he had to give up because of his ill health.A. when B. whereC. in which D. for which 查看答案
