单项选择题

Questions 17 to 20 are based on the following report. You now have.20 seconds to read Questions 17 to 20.
What is one reason of the incident

A. Overcrowdedness.
B. Confusion overthe situation.
C. Reduction in allowances.
D. Use of tear gas and rifles.

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单项选择题

单项选择题

Questions 17 to 20 are based on the following report. You now have.20 seconds to read Questions 17 to 20. What is one reason of the incident 您的浏览器不支持 audio 元素。