题目

78. Eric’s father, a skilled worker has repaired a lot of bikes of this kind, so he will _______ succeed in repairing your bike, I suppose. A. probably                B. may be                   C. maybe                    D. Perhaps 答案:A高速公路养护小组,乘车沿东西向公路巡视维护,如果约定向东为正,向西为负,当天的行驶记录如下(单位:千米)     +17,-9,+7,-15,-3,+11,-6,-8,+5,+16 (1)养护小组最后到达的地方在出发点的哪个方向?距出发点多远? (2)养护过程中,最远处离出发点有多远? (3)若汽车耗油量为a 升/千米,则这次养护共耗油多少升?
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