中学生网络课堂本课配套习题挑战模式1/5
某工地调来72人参加挖土和运土，已知3人挖出的土1人恰好全部运走，（ ）调配劳力才能使挖出来的土能及时运走且不窝工
| A: 53人挖土，17人运土 |
| B: 54人挖土，16人运土 |
| C: 55人挖土，15人运土 |
| D: 56人挖土，14人运土 |
- 提示1：PHA+6K6+5Ye65oyW5Zyf55qE5ZGY5bel5Liq5pWw77yM5qC55o2u5p+Q5bel5Zyw6LCD5p2lNzLlkI3lkZjlt6XmjJblnJ/lkozov5DlnJ/vvIzlt7Lnn6Uz5Lq65oyW55qEMeS6uuaBsOWlveiDveWFqOmDqOi/kOi1sO+8jOiwg+mFjeWRmOW3peS9v+aMluWHuueahOWcn+iDveWkn+WPiuaXtui/kOi1sO+8jOWPr+WIl+WHuuaWueeoi++8jOi/m+iAjOaxguWHuuWNs+WPry48L3A+
- 答案：Qg==
PGRpdj48cD7op6PvvJrorr545Lq65oyW5Zyf77yMeeS6uui/kOWcn++8jOeUsemimOaEj+WPr+W+l+WHuu+8mjwvcD48cD4mbmJzcDt4K3nvvJ03MiZuYnNwOyZuYnNwOyZuYnNwOyZuYnNwOyZuYnNwOyZuYnNwO3jvvJ0zeSZuYnNwOyZuYnNwOyZuYnNwO++8jDwvcD48cD7op6PlvpfvvJombmJzcDt477ydNTQmbmJzcDt577ydMTgmbmJzcDsmbmJzcDsmbmJzcDvvvI48YnI+PC9wPuetlO+8mjU05Lq65oyW5Zyf77yMMTjkurrov5DlnJ/vvIzmiY3og73kvb/mjJblh7rmnaXnmoTlnJ/og73lj4rml7bov5DotbDkuJTkuI3nqp3lt6UuPGJyPjwvZGl2Pg==
本课配套习题挑战模式2/5
2008年以来随着金融危机的不断曼延，我市某县的返乡农民工逐渐增多，政府部门决定利用现有经过培训的349名男职工和295名女职工推荐到某企业生产A、B两种大型产品共50个. 已知生产一个A型产品需男职工8名，女职工4名；生产一个B型产品需男职工5名，女职工9名.
请你根据所学知识为这家企业分析A、B两种大型产品如何调配，如果为了扩大就业，企业应选择（ ）种符合题意的调配方案
| A: 生产A种31个B种19个 |
| B: 生产A种32个B种18个 |
| C: 生产A种33个B种17个 |
| D: 生产A种34个B种16个 |
- 提示1：PHA+5qC55o2u5Lik5a625LyB5Lia5YWx55So5Yiw55qE55S36IGM5bel5LiN6LaF6L+HMzQ55Lq65ZKM5YWx55So55qE5aWz6IGM5bel5LiN6LaF6L+HMjk15Lq65L2c5Li65LiN562J5YWz57O75YiX5LiN562J5byP57uEPC9wPg==
- 提示2：PHA+5qC55o2u5Lq65pWw5piv5q2j5pW05pWw5Y2z5Y+v6I635Y+W5YiG6YWN5pa55qGI77yM6YCa6L+H6K6h566X5ZCE56eN5pa55qGI55qE5oC75Lq65pWw5Y+v6YCJ5oup5pyA5L2z5pa55qGIPC9wPg==
- 答案：QQ==
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
本课配套习题挑战模式3/5
在一环形路上顺时针排列有A、B、C、D四所学校，它们分别有彩电15台、8台、5台、12台. 为使各所学校的彩电数目相同，允许这几所学校相互调剂，但只能向相邻的学校调出彩电（或调入彩电）. 问调配使调出的彩电总台数最少的方案有（ ）种
| A: 1 |
| B: 2 |
| C: 3 |
| D: 4 |
- 提示1：PHA+5bCG5Y+w5pWw5aSa55qE5a2m5qCh6LCD5YWl5Yiw5Y+w5pWw5bCR55qE5a2m5qCh77yMMTXlj7DjgIExMuWPsOmDveimgeiwg+e7meacgOi/keeahO+8jOS9v+Wbm+aJgOWtpuagoeeahOW9qeeUteWPsOaVsOebuOWQjOWNs+WPry48L3A+
- 答案：RA==
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
本课配套习题挑战模式4/5
杭州某科技公司在甲地、乙地分别生产了17台、15台相同型号的检测设备，全部运往残运会赛场A、B两馆，其中运往A馆18台，运往B馆14台，运往A、B两馆运费如下表：
| 出发地 目的地 | 甲地 | 乙地 |
| A馆 | 800元/台 | 700元/台 |
| B馆 | 500元/台 | 600元/台 |
设甲地运往A馆的设备有x台，总运费y（元）与x（台）的函数关系式是y=200x+19300（3≤x≤17）.要使总运费不高于20200元，请你帮助该公司设计调配方案，有（ ）种方案；
| A: 1 |
| B: 2 |
| C: 3 |
| D: 4 |
- 提示1：PHA+5qC55o2u5Ye95pWw5YWz57O75byP5b6X5Ye65LiN562J5byP4omkMjAyMDDvvIznu5PlkIh455qE6IyD5Zu077yM5Y2z5Y+v5b6X5Ye6562U5qGIPGJyPjwvcD4=
- 答案：Qg==
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
本课配套习题挑战模式5/5
2010年1月1日，全球第三大自贸区（中国-东盟自由贸易区）正式成立，标志着该贸易区开始步入“零关税”时代. 广西某民营边贸公司要把240吨白砂糖运往东盟某国的A、B两地，现用甲、乙两种货车共20辆，恰好能一次性装完这批白砂糖. 已知甲种货车的载重量为15吨/辆，乙种货车的载重量为10吨/辆.
已知运往A地的运费为：甲种货车630元/辆，乙种货车420元/辆；运往B地的运费为：甲种货车750元/辆，乙种货车550元/辆. 如果安排10辆货车前往A地，其余货车前往B地，总运费为11330元，这两种货车的调配方案是（ ）
| A: 甲种货车3辆，乙种货车7辆前往A地；甲种货车5辆，乙种货车5辆前往B地 |
| B: 甲种货车5辆，乙种货车7辆前往A地；甲种货车3辆，乙种货车5辆前往B地 |
| C: 甲种货车3辆，乙种货车5辆前往A地；甲种货车5辆，乙种货车7辆前往B地 |
| D: 甲种货车5辆，乙种货车5辆前往A地；甲种货车3辆，乙种货车7辆前往B地 |
- 提示1：PHA+6K6+55Sy56eN6LSn6L2m55SoeOi+hu+8jOWImeS5meenjei0p+i9pueUqO+8iDIwLXjvvInovoY8L3A+
- 提示2：PHA+5qC55o2u55Sy56eN6LSn6L2m55qE6L296YeN6YeP5Li6MTXlkKgv6L6G77yM5LmZ56eN6LSn6L2m55qE6L296YeN6YeP5Li6MTDlkKgv6L6G77yM5YWx5pyJ55m956CC57OWMjQw5ZCo5Y+v5YiX5pa556iL5rGC6Kej44CCPC9wPg==
- 提示3：PHA+6K6+6LCD5b6AQeWcsOeahOeUsuenjei0p+i9puS4umHovobvvIzliJnkuZnnp43otKfovabkuLrvvIgxMC1h77yJPC9wPg==
- 提示4：PHA+6LCD5b6AQuWcsOeahOeUsuenjei0p+i9puS4uu+8iDgtYe+8iei+hu+8jOWImeS5meenjei0p+i9puS4uu+8iGErMu+8iei+hu+8jOagueaNruaAu+i/kOi0ueS4ujExMzMw5Y+v5rGC6KejPC9wPg==
- 答案：QQ==
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
