换题库后出现的一个CR jj,CR黄金80也有,下面是引用的几个版本。好几个答案,好像都有点道理 ,大家来热烈的讨论吧,欢迎考过的XDJM们来确认答案啊!谢谢拉! The ctiy currently has a bridge which has to raise and open to let the boat pass through. And, the city is planing to construct a new brige which is higher than the current. Since the new bridge will not open and raise as often as before, it will reduce the traffic time. Weaken this proposal will not work my answer is that "some boats are too wide to the poles of current bridge". my logic reasoing is that the propasl only raises the bridge hieight but not make it wide. The new brige will have the same problem as current one.
CR黄金80中的: [版本1]有一座吊桥,有船过的时候升起来,现在为了解决交通问题,打算重建一座新的大桥,能让给多的车辆通行,这作新的大桥的跨度很大,有桥墩支撑的拱桥高度足够绝大多数的船只通行。问这个计划不可能实现的原因。 答:绝大多数船只的宽度大于桥墩之间的宽度。 [版本2]有个什么drawbridge就是类似于吊桥,可以吊起来让比较高的船通过.某城市为了减少吊桥对桥上汽车交通的影响决定修个更高的drawbridge 这样不用吊起桥船也能通过了. 问WEAKEN选:换了更高的桥,更高的船也就往这个港口跑了
[版本3]某城市有一座可升降的桥,在巨轮通过时,需要被lift,让轮船通过,这样会阻碍桥上汽车通行。现在该市要造一座新桥,柱子之间的距离比老桥宽,高度也比老桥更高,问“造新桥可以改善汽车通行”的削弱。--我选:新桥的车流量是老桥的两倍。
[此贴子已经被作者于2007-10-19 13:07:20编辑过] |