标题: 请大家帮忙讲解一下，我是新手，还是不太懂这道题 [打印本页] 作者: thumbbunny 时间: 2011-5-7 10:40 标题: 请大家帮忙讲解一下，我是新手，还是不太懂这道题 6. In late 1997, the chambers inside the pyramid of the Pharaoh Menkaure at Giza were closed to visitors for cleaning and repair due to moisture exhaled by tourists, which raised its humidity to such levels so that salt from the stone was crystallizing and fungus was growing on the walls. (A) due to moisture exhaled by tourists, which raised its humidity to such levels so that salt from the stone was crystallizing (B) due to moisture that tourists had exhaled, thereby raising its humidity to such levels that salt from the stone would crystallize (C) because tourists were exhaling moisture, which had raised the humidity within them to levels such that salt from the stone would crystallize (D) because of moisture that was exhaled by tourists raising the humidity within them to levels so high as to make the salt from the stone crystallize (E) because moisture exhaled by tourists had raised the humidity within them to such levels that salt from the stone was crystallizing
是OG上的一道题目，请大家讲解详细一些。 because ，because of 和 due to 有什么区别，各自的用法是什么，为什么选择现在完成时啊？
谢谢啦作者: balgirl 时间: 2011-5-7 11:43
在GMAT中， due to = caused by 当且仅当due to可以用caused by代替时，才选due to