单项选择题

W:I thought you were going to be on the 5:30 train.
M:I took the 5:30, but it was so late that it came in alongside the 6:00 train.
How late was the train().

A. 20 minutes
B. 30 minutes
C. 40 minutes

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单项选择题

单项选择题

A. it costs less than a human operative.
B. the information it stores is valuable.
C. they know that their data is safe.

W:I thought you were going to be on the 5:30 train. M:I took the 5:30, but it was so late that it came in alongside the 6:00 train. How late was the train(). 您的浏览器不支持 audio 元素。