问题
选择题
Several of the passengers were hurt and one was taken to hospital. Luckily _____ was killed. [ ]
A. no one
B. not all
C. none
D. no other
答案
答案：C
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Several of the passengers were hurt and one was taken to hospital. Luckily _____ was killed. [ ]
A. no one
B. not all
C. none
D. no other
答案：C
溶液至过量，既有气体逸出又有沉淀生成