多项选择题

根据集团公司事故管理办法的有关规定，下列属于特大事故等级标准的是（）。

A.事故造成的死亡人数达30人以上
B.一次事故直接经济损失超过5000万
C.一次事故所造成的重伤和集体中毒事件的人数100人以上
D.一次事故直接经济损失超过1亿

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单项选择题

W: I used to be afraid of heights. Every time I was in a tall building or on a bridge, my knees would begin to shake.M: I had the same problem until I took up mountain climbing.Q: What did the man say about heights?（）

A．Both of them have overcome their fear of heights.
B．The woman is afraid of high places, but the man is not.
C．They are both afraid of high places.
D．Both of them like to stand on high places.

单项选择题

M: It’s a miracle that Frank came out of the accident alive.W: That’s true. His car is a total loss, you know.Q: What do we learn from the conversation?（）

A．Frank's car was accidentally lost.
B．Frank was killed in a car accident.
C．Frank fell out of a car.
D．Frank survived a car accident.