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Ŀ ԴԔ }

DijСMyƽٶȡΣ
1С܇λA_ʼֱ\ӵλBֹͨ^ľx______cm
2С܇λAl_ʼӋrλBrÕrg电ʾС܇ABÕrg______s
3С܇ƽٶ______cm/s

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Ŀ ԴԔ x}

ЌڜpّTԵIJӰ푵ǣ
Ah\ӆThr
Bڄӕr^ֱ¶ײʹ^
CС܇{T{܇rϵðȫ
DĴ򄂕^ıʹ҉m

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Ŀ ԴԔ x}

һwһƽֱ\@ƽͻȻʧwκw
Awֹͣ\B\ٶԽԽ
C\ٶԽԽСDֱ\

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Ŀ ԴԔ }

̫܇늳ذ             Ƴɵģx}w댧w򡰳w܇x܇r܇ϵ˕ǰA@˾         

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Ŀ ԴԔ x}

cпwԇP֪R_
AȥČx_ֺ^m\ڌܵTԵ
BȥČڿ\ӵcrٶȞ
Chr_Ҫŵfwg໥
Dpסθoֹrˌܵc܌˵һƽ

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Ŀ ԴԔ x}

DʾFNɄӕrסNѸײӲĵN^ooľϣ@Nײ
AN^\׃oֹNڑTҪoֹB
BN^\׃oֹNڑTҪ^m\
CN\׃oֹN^ڑTҪoֹB
DN\׃oֹN^ڑTҪ^m\

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Ŀ ԴԔ }

·ӎܰճ·ϵĉm@鶶·rm       ߀ԭ          Bԉm·ͷx_

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Ŀ ԴԔ }

Їʽ^R·nj˂wJt{٩˾CҊJt˺ox܇܇   ^mǰײ܇pٻЕr܇Ą   xӡ򡰜p١

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