程序printf("%5d",123);的输出结果是（）。
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程序printf("%3d",1234);的输出结果是（）。
People,animals and plants will die when_______.
A. the temperature is too high
B. there are too many greenhouse gases
Global warming happens when ________.
A. temperature rises or the Earth heats up
B. there are too many greenhouse gases in the atmosphere
Match the words and phrases with their definitionsaccording to Reading 1.
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