你能帮帮他们吗
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__time is __forever a lost losting b lost lost c losting los
1年前
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将一质量为m=0.2kg的物体由h=5m高处以初速度v0=10m/s水平抛出,不及空气阻力,g=10m/s求
1年前
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以下英语单选题怎么做 求指教~1.She ______ sit-ups before sleep,but not now
1年前
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In the past few years, a great many teachers have found
1年前
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1. Write a program to copy its input to its output, replacin
1年前