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题库 / GMATAdvanced-SC-45
Chinese public buildings erected under a construction code of the Sung dynasty have withstood earthquakes well because the white cedar used has four times the tensile strength of steel and the timber frame, incorporating many joints and few nails, is flexible.
used has four times the tensile strength of steel and the timber frame, incorporating
used in them has four times the tensile strength of steel has and the timber frame, incorporating
that was used in them has four times the tensile strength steel has, and the timber frame, incorporating
that was used has four times as much tensile strength as steel, and the timber frame incorporates
that was used has four times the tensile strength steel does, and the timber frame incorporates
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cedar比steel和timber frame 的强度大，有joints and nails，cedar很灵活
既然是这样DE就去掉，因为变成了timber frame incorporates。
然后C的 steel has 应该是steel does B里面的used in them的them要找很远才能找到buildlings
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