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WA1208E-AG WA2210-AG WA2220-AG WA2620E-AGN WA2110-AG
WA2200-AG WA2610E-AGN WA2620E-AGN WA2200X-AG
WA＝3WB WA＝2WB WA＝WB/3 WA＝WB/2
Wa =Wb，Ea >Eb Wa≠Wb，Ea >Eb Wa=Wb，Ea Wa≠Wb，Ea
world earth globe geography
自动化仓库－A.utomA.tiC. wA.rehouse 立体仓库－stereosC.opiC. wA.rehouse 虚拟仓库－virtuA.l wA.rehouse 保税仓库－B.oneD. wA.rehouse
world earth globe geography
publishers are really adventurous in managing the Potter's business businesses involved with Potter are moving along in an unusual wa3' the media are promoting Pottermania more actively than Hollywood businesses are actually more credible than media in Potter's world
WA_GZHZB WA_GZData WA_GZFT WA—GZTblSet
B.是由同种材料做成的，A.和 长度相等，但A.比B.的横截面积大，当S.闭合后，在相同时间内，下列叙述正确的是（ ）A.电流通过A.B.所做的功是WA>WBB.电流通过A.B.所做的功是WA因为它们串联，电流相等，所以电流通过A.B.所做的功是WA=WB 因为它们两端电压大小不等，无法比较电流通过A.B.所做功的大小 
图1
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