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The rate at which a road wears depends on various factors, including climate, amount of traffic, and the size and weight of the vehicles using it. The only land transportation to Rittland's seaport is via a divided highway, one side carrying traffic to the seaport and one earring traffic away from it. the side leading to the seaport has worn faster, even though each side has carried virtually the same amount of traffic, consisting mainly of large trucks.
which of the following, if true, most helps to explain the difference in the rate of wear?
d. a greater tonnage of goods is exported from rittland's seaport than is imported through it.
这个选项是正确答案,但是我想问seaport的出口比进口多也就是说,from the seaport的路承重比to the seaport多,为什么磨损更多的是to the seaport的路呢,这不是刚好相反吗?? |
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