A.Mary has a keen eye for style,B.Nancy regrets buying the dress. C.Nanc
A. Mary has a keen eye for style,
B. Nancy regrets buying the dress.
C. Nancy and Mary went shopping together in Rome.
D. Nancy and Mary like to follow the latest fashion.
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Passage One． 听材料，回答下列各题：
A. Improve themselves.
B. Get rid of empty dreams.
C. Follow the cultural tradition.
D. Attempt something impossible.
活塞上压力维持恒定的汽缸内有0.2kg压力为400 kPa的干饱和蒸汽。使其冷却到体积为原有体积的一半，试确定过程
A.They occur at regular intervals.B.They can withstand great heat.C.They
A. They occur at regular intervals.
B. They can withstand great heat.
C. They travel through the Earths interior.
D. They can record the Earths internal temperature.
A.How deep they are.B.Where earthquakes form.C.How hot they are.
A. How deep they are.
B. Where earthquakes form.
C. How hot they are.
D. What purpose they serve.
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