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- His sole motive was to make her happy.
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- During the past ten years there have been dramatic changes in the international situation.
- 共用题干 第三篇Almost Human?Scientists are racing to build the worlds first thinking robot.This is not sci...
- An Essential Scientific Process All life on the earth depends upon green plants. Using sunlight, th...
- 共用题干 第三篇Renewable Energy SourcesToday petroleum（石油）provides around 40% of the worlds energy needs ,...
- He shifted his position a little in order to alleviate the pain in his leg.
- 共用题干 Early Ideas about the Universe1 Early man got his ideas about the universe by looking at the s...
- We had trouble finding a pure water supply.
- The mountains look glorious at sunrise.