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- 2在三角形ABC的空地上种草地AB长20M,AC长30M.角A为150度.己知每块20元,则购买这种
- 3After the b_____ match,we all felt tired.
- 4studying english is the best choice in your life 这句对吗
- 5已知a,b分别是6+√13与6-√13的小数部分,则a+b=___,化简(1-a)√-1/(1-a)
- 6how are you getting on with your teaching?如何回答
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