单项选择题

How long is the shaft

A．12.5 miles.
B．23 miles.
C．less than 32 miles.
D．37 miles.
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单项选择题
What is the most possible reason for the English Channel to emerge
A．Because of a flood millions of years ago.
B．Because of an earthquake millions of years ago.
C．Because of a flood thousands of years ago.
D．Because of a volcano eruption millions of years ago.
单项选择题
What is NOT true about the construction of the Channel
A．A British team started to drill southeast from Dover.
B．A French team started to drill northwest from Sangatte.
C．The two teams started drilling in 1990.
D．The two teams met under the Channel in December, 1990.
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