The phrase" this element of the unknown" (paragraph 3 ) refers to ______.
A. when and where earthquakes may occur
B. the percentage of earthquake occurrences
C. the extension of earthquake zones
D. what big damage earthquakes may cause
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How far is the van from the nearest buses？
About six miles.
B. Twelve miles.
C. More than six miles.
D. Fourteen miles.
A．He thinks it is a pity that there is a flaw on it.B．He thinks it is a good bargain b
A. He thinks it is a pity that there is a flaw on it.
B. He thinks it is a good bargain but it could be much cheaper.
C. He thinks it is a real bargain because the flaw is hardly noticeable.
D. He thinks the woman should show it to her friends.
听力原文：M: If you had waited until after the Christmas holidays, you could have bought that dress for much less.
W: I know that, but I needed it immediately. I had a wedding reception to attend.
When had the woman purchased the dress？
A. Shortly after Christmas.
B. In the spring.
C. During the Christmas season.
During the sale.
听力原文：M: I'm starting training tomorrow for the football season.
W: Should you be playing right away after you just got over that leg injury？
What does the woman imply？
A. The man should step over the football.
B. The man shouldn't be taking the train tomorrow.
C. The man should see the game afterward.
D. The man shouldn't be training tomorrow.
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