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(2010•广元)解不等式组
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(2010•广元)解不等式组
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(2010•广元)解不等式组
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(2010•广元)解不等式组
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(2010•广元)解不等式组
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(2010•巴中)巴广高速公路在5月10日正式通车,从巴中到广元全长约为126km.一辆小汽车,一辆货车同时从巴中,广元两地相向开出,经过45分钟相遇,相遇时小汽车比货车多行6km,设小汽车和货车的速度分别为xkm/h,ykm/h,则下列方程组正确的是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAF4AAAAoCAYAAAB3qU2yAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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fFxEvDoq6PBP0kz4utb4Dj+BWoFHjRIm7tqvwJx9CEag1/EXhUHbN9eSh1cIsP+2vePsefzbtneo
4w6kTSM3YbIivll7R5ZXhds7xBGTv00jy0Rb46MivmV7R65XJSXtoE0j18TEiG/c3oHqeMv2juM2
jSbgL2/vULdUrdo7Ito06oO/or3D61Wb9g63W8Bt06gO/pL2jiD4+u0dMW0a1cHDCY6u2FhklGjv
8HrVqL0jok3jnwJfrL3jAHz99o7jNo1rwb9ze4do3/M15OZit85q1Nn8/fORPyL2zd7e4VBxLlir
XXj39g4AH73Zrga/t3do+N6Wgn4lWFZt7dF+AN/2DBRJCINsAAAAAElFTkSuQmCC
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAFgAAAA6CAYAAAA0qZ5lAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAARJSURBVHhe7Zs9luMgDIB9iz3GFtP7JmnmBj7G
NDmATzFNal9imlRucwsWsCFgBEgy3peMlSrvBQT6EPqxlU7J51ACXUn69XJR90OX//3CQcCPn5vq
uk5dvwXvXhNIABfhzqPqNXgDvxumvWufYv4G8EN9/v2jPi5XQPlJDf2oZvuL/q4hC+O6jUSAy9Y7
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lu4tenVVw9N9bm9iO8BZ32s2Ya5dfAAeYODXn1d6hQb4xGl0z0NsQl4OtmTCdcDRLV2td9BWvpQH
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gJ/p4KytN/Z1KeDaPsu/lwCbtWIjSXUGDjxcEP2wB9plIT2btAWD6Y+TkwUcuAB9SEOS/P4/FwHm
3kmAS/fTzIKXZ8Rp2mRO2Th+77sgmBXAvbbc57Po8HSBwLrLhMs6eNF+vwtQn7YBRsYEDFtOGABc
EPP+0WUUxIR3kZPx3y3TtPBtTVBIwcE43M+aG9tgne6TBXgJWkCp3Dxt0pYfZQ2hebrsZJfJHj6Z
Dtj6Qh3Nc88i9pbKPiCW/Gtr33scZyJgrdhg8tCKgpt0hrT9XMkaCGFXjKSNtBkcAb59fdqrn3tZ
/4yk72NBbTDxpUSAr5cPCxj8RJFeAGORe5rujXLuhWeutJXXRmXUK+A7sZNHLBhtwc5yaU1SAhgN
2Ax0JTIesgAmAeZBxi5x7nFBylDqSzs3pD3ak/LgPQuddS6xkjsrJr7eApjPDjVTAKMw8QcJYD47
1EwBjMLEHySA+exQMwUwChN/kADms0PNFMAoTPxBApjPDjXz9wDO9OeiKBw46GUA7+kpK/XnHsgO
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vYTQpNOv1mFJ2jWq15ck8e0Gg62UzSAjen3fjhhxw5leVaV4PWvE1U8w/B/2rUVHBgEqJgAAAABJ
RU5ErkJggg==
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAFgAAAA6CAYAAAA0qZ5lAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAR2SURBVHhe7Zy7lesgEIbVxS3jBpurEyfuQGVs
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MLDbV8dbawIB4CTcdWYjBy/gD9NSO/Ypnt8AfrLr3z/s43IDFr+waZzZKr/hf3PInXHeRjzAaetd
NVzV6TJ1wHm8jHmAH183efzv38/0s8vUXQSGLm9TDFhYbvfBSLoUwLJrHezGWXnk/okTKLZg09U6
j2ywQa8jjhEgA+ZRrvthhF0RAa9sHhNZxM7wl2lk7+Kd8IAFNFNkpHJg0W5315HZYIRlgU1kbAE2
z117bG22CPOfxwPGTFoMQoHLF1BetIhiJ4ThGkHub29JFuKmT7EmOzlVYG2rWBmPoI0hZxER2OTi
gwRYVjuN40C4aeuyeAVWENzlxky8toU/DS1YTG4zkLGKTYkduBAAsM233ROxdT/yWMYXhzl0fhv4
VASWbi1au6rp5T63J7Ed4KjvFZMQx87fAAvQ8euvI62hAT5xmc37EJmQp4NtMeE8YO+UauuduJWr
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Ve1lKMqIdnzLF9H/5qZFAgxf27s/VNwMm5NO5WZZ9H1j3TAfO6X/zU2tHHDs2j6h8T38FrilK8ro
fxsDjl3bawkRqG6p0A2Dflb/Tu8Q3XBe/9sUMObaXl2OOhq1lrphI7s6SjeM0P+2A1xwbS99loaR
krVmdcPR2R+jGw7nXv4jeLQPLru2fwW8Kt1wEvD+umGM/redBXs95dIhDtgc5xrdcHT2B+mGEfrf
fwLYT/grdMMZwPvrhvP632MAR7S1ZvC31g3rfz6ifttR/osmzwcbEcr1857bmLLvT6wbDpR+OYVl
GVmndW2p/Ka6YVBKuRvkE+qGI1pVxmiaNbJ9/9oHfwDLwY5/n00OWgAAAABJRU5ErkJggg==
)
D.
-
(2010•巴中)巴广高速公路在5月10日正式通车,从巴中到广元全长约为126km.一辆小汽车,一辆货车同时从巴中,广元两地相向开出,经过45分钟相遇,相遇时小汽车比货车多行6km,设小汽车和货车的速度分别为xkm/h,ykm/h,则下列方程组正确的是( )
A.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAF4AAAAoCAYAAAB3qU2yAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
jwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAPHSURBVGhD7Zq9cewgEMfVxSvjBc7VySXXAWU4
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XXj39g4AH73Zrga/t3do+N6Wgn4lWFZt7dF+AN/2DBRJCINsAAAAAElFTkSuQmCC
)
B.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAFgAAAA6CAYAAAA0qZ5lAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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RU5ErkJggg==
)
C.![](data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAFgAAAA6CAYAAAA0qZ5lAAAAAXNSR0IArs4c6QAAAARnQU1BAACx
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GVmndW2p/Ka6YVBKuRvkE+qGI1pVxmiaNbJ9/9oHfwDLwY5/n00OWgAAAABJRU5ErkJggg==
)
D.
-
(2010•珠海)2010年亚运会即将在广州举行,广元小学开展了“你最喜欢收看的亚运五项球比赛(只选一项)”抽样调查.根据调查数据,小红计算出喜欢收看排球比赛的人数占抽样人数的6%,小明则绘制成如图不完整的条形统计图,请你根据这两位同学提供的信息,解答下面的问题:
(1)将统计补充完整;
(2)根据以上调查,试估计该校1800名学生中,最喜欢收看羽毛球的人数?
-
(2010•珠海)2010年亚运会即将在广州举行,广元小学开展了“你最喜欢收看的亚运五项球比赛(只选一项)”抽样调查.根据调查数据,小红计算出喜欢收看排球比赛的人数占抽样人数的6%,小明则绘制成如图不完整的条形统计图,请你根据这两位同学提供的信息,解答下面的问题:
(1)将统计补充完整;
(2)根据以上调查,试估计该校1800名学生中,最喜欢收看羽毛球的人数?
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(2010•广元)一个几何体的三视图如图所示(其中标注的a,b,c为相应的边长),则这个几何体的体积是________.
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(2010•广元)一个几何体的三视图如图所示(其中标注的a,b,c为相应的边长),则这个几何体的体积是________.