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??????2016????????????
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12???
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1.D;2.A;3.B;4.B;5.A;6.D.
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7.120;8.37.5;9.90?5;10.AB?BC?CA;BAC?
C?B;11.?;12.A?60;13.??.
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14.??????A?;???????60;??M???AC??????;15.?;16.?B;?C?B?A;?ED?EB?BD.
35???
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1.B;2.D;3.A;4.C;5.B;6.C.
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7.??????????;8.90;9.????;10.2
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12.??60???;13.??A??90?????????;14.?????A?60??ADP??????;15.??.
68???
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1.C;2.B;3.B;4.D;5.D;6.B.
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7.?;8.?;9.-6.
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10.??A;?30;?AM?;11.?;12.?AE=BF?AE?BF????;?12cm2;
??ACB=60?????ABFE???.???.
910???
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1.C;2.B;3.A;4.D;5.A;6.C.
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7.2?120;8.ACE?A?42?CAE?BD;
9.A1(-3?-4)?A2(3?-4)?????????.
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10.(2?-3)?(5?0);11. ? ;
12.?????ACE??BCD;?C????????ACE ??????????BCD ????????????????????????????60????ACE??C??????????60????BCD???BCD??C??????????60????ACE.
1113???
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1.C;2.C;3.C;4.A;5.D;6.D;7.C;8.C;9.A;10.D.
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1416???
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1.D;2.D;3.C;4.A;5.B;6.B;7.B;8.C.
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9.60;10.8;11.2;12.90;13. cm;14.B?M;15.2;16.1.
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17.(?);18.40.
19.(1)??.(2)??BO??O???????D.
1718???
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1.B;2.C;3.B;4.B;5.C;6.A;7.A; 8.D .
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9.3OP5;10.45?135;11.90 ? ;12.?;13.90;
14.48 .
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15.?????CD??O??G???C?CAE????????????
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16.????????.??????????????????3.9???DH=2??CD=2.4???CH=0.4?????0.4????????????????????????.
1920???
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1.C;2.B;3.C;4.A;5.B;6.C;7.B;8.B.
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9.70;10.40;11.4;12.9.
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13.?????OD.
14.A???????????.????A???150km??????BM??
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2123???
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1.C;2.A;3.D;4.D;5.B;6.C;7.B;8.C .
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9.3;10.2;11.1440;12.300 cm2;13.65;14.30 ;15. ;16.144.
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17.???(1)??DC;(2)??OD??DO?AC; 18.(1)AC= cm?BC= cm;(2)24cm2.19.160 m2.
2426???
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17. ;18.?;19.40?140 20.?????AC?EC=CD??DC=CB?BC=EC.
2728???
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发表于 2019-9-13 23:46:11