1、 10010022411225A BC D3.ABCD4.ABCD5.A B C D6A BC D7ABCD829.A. 2020B. C. 55D. 10.A BC D11.3A BCD12. 4A4.7mB4.4mC4.7mD5.3m29113 145_5_15_16 1713.1_()_()18.6_,6min_19 20 m/s _ 217 22. 8 () 23_ 24. 25.9S1S2 S1S2 2826110211312ABMN4(AB)1327131434421 39271_2A BC DE F214_28 29. 15309 A B C D E F G H I cm 60
2、60 60 80 80 100 80 80 100mm2 0.76 0.89 1.02 0.76 0.76 1.02 1.02 1.021_231.116A_216B_/min 0 1 2 3 4 5 6 7 8 9/ 90 92 93 95 96 98 98 98 98 983_,_4,16C25,_(/)_616A_32171 _ 2OFOE_ 33. 18(1)_ ( )(2)_()A_(3) A_(AB)BA A_()A_()00()_()(4)AA_341_2min 0 10 20 30 40 150 180 90 74 65 60 57 21 20 90 70 55 33 20 2040min_3 430min2 A36 B39 C42 D45
