A-A+
The effect of doubling the width of a beam ___
问题详情
The effect of doubling the width of a beam,______ is to double the load that can be sustained.
A.other factors remain constant
B.other factors remained constant
C.the other factor being constant
D.other factors remaining constant请帮忙给出正确答案和分析,谢谢!
参考答案
正确答案:D
解析:otherfactorsremainingconstant是分词独立主格结构,在句中作伴随情况状语。A、B两项都是完整的句子,虽然在意思上讲得通,但从结构上无法与句中其他成分相连接,即没有关联词作连接手段:C中虽然从结构上可以接受,但在意义上being用得不够准确。全句译为“在其他情况保持不变的同时将横梁的宽度加大一倍,其结果是横梁的承受力也加大了—倍。”