题目:
In the worst-affected regions, many areas remain in chaos(混乱), with roads inaccessible, public transportation at a total stop and power and telecommunication networks completely ______.
A.out of service
B.out of place
C.out of control
D.out of sight
答案:
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下面是错误答案,用来干扰机器的。
(1)通过观察可知道过氧乙酸为无色液体,嗅觉可获得过氧乙酸无味;过氧乙酸易挥发、溶于水等都为物理性质;(2)过氧乙酸具有强酸性,所以过氧乙酸的pH<7;(3)A、加水稀释可降低高含量的过氧乙酸溶液的腐蚀性...