试题与答案

某供电局线路检修班乘汽车沿南北方向检修线路,记录员把当天的行车情况记录如下:到达

题型:解答题

题目:

某供电局线路检修班乘汽车沿南北方向检修线路,记录员把当天的行车情况记录如下:
到达地点ABCDEFGHIJ
前进方向
所走路程(千米)1145371239106
(1)如果规定向南为正,求J点在起点的哪个方向?距离起点的路程有多少千米?
(2)若汽车每行驶1千米耗油0.15升,汽车出发时装满油,油箱的容积为8.5升,那么汽车在中途需要加油吗?如需加油,应加多少升油?

答案:

(1)-11+4-5-3+7-12+3-9+10-6

=(-3+3)+4+7+10-11-5-12-9-6

=0+21-43

=-22千米.

所以,J点在起点北方,距离起点有22千米;

(2)11+4+5+3+7+12+3+9+10+6=70千米,

70×0.15=10.5升,

10.5-8.5=2升,

∵10.5>8.5,

∴汽车在中途需要加油,应加2升油.

试题推荐
题型:改错题

短文改错 (共10小题;每小题1分,满分10分)

Last weekend I went to the Summer Palace as usually. At about noon, I was enjoying my reading near a lake while suddenly I hear someone crying for help. I went up to see what was happening. I was shocking to find a little child struggling in the water in the distance while many peoples were standing by without doing anything. Without any hesitation, I had pushed through the crowd as I took off my coat, but jumped into the water quickly. I managed to reach him and carried him back to safety. To his great relief, the kid was saved. I was proud what I had done. I wish everyone could give the hand when someone else is in need.

查看答案
微信公众账号搜索答案