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1,暑假作业,(第4243页)(参考答案),2,C,B,B,B,3249101,C,3,解:,解:,答:桃树有32棵。,4,12,50.83,五十点八三,3.2,5.6,0.63,3.05,135o,85o,25o,90o75o25o,5,1.9,0.6,4.5,10,0.4,0.8,10,10,1.25,0.9,0.04,9.75,0.725,5.024,1.6,3.5,10.32,2.075,