题目信息
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.
A:used has four times the tensile strength of steel and the timber frame, incorporating
B:used in them has four times the tensile strength of steel has and the timber frame, incorporating
C:that was used in them has four times the tensile strength steel has, and the timber frame, incorporating
D:that was used has four times as much tensile strength as steel, and the timber frame incorporates
E:that was used has four times the tensile strength steel does, and the timber frame incorporates
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已选答案：
正确答案：
A:used has four times the tensile strength of steel and the timber frame, incorporating
答案A
题目大意：根据宋朝建筑规范建造的中国公共建筑抗震性能很好，因为使用的白雪松的抗拉强度是钢的四倍，而木框架的连接处多，钉子少，很灵活。
选项分析
A.正确
B.倍数直接加名词
CDE that was多余，wordy
题目大意：根据宋朝建筑规范建造的中国公共建筑抗震性能很好，因为使用的白雪松的抗拉强度是钢的四倍，而木框架的连接处多，钉子少，很灵活。
选项分析
A.正确
B.倍数直接加名词
CDE that was多余，wordy
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