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 bv 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 这题OG的解释： 为什么 them 在 D选项 中是指代tourists ，但是在 E选项 中them又是正确地指代了chambers？

25）有三个stack用来放7个file，7个file中有2个是3m高；有2个是5m高；还有3个是4m高，那么这三个stack中最高的一个stack的最小高度是多少？ 10 题目不太懂 求may老师

求may老师解答

求may老师解答

求may老师

求may老师

老师为什么9k加8可以变成9k加3咧？还有前面（1）那个列出来的式子不是应该3k加1再加1乘以y吗？

老师这道题126除以21是为了干嘛的？拆分最小公倍数嘛？那拆分的形式里面也没有6啊？还有后面的63是哪里来的？是拆分的那个最小公倍数嘛？ 如果在考试中我不能很快速的算出来类似126这样的大数的最小公倍数怎么办？有什么快速算出来的办法吗？谢谢！

求may老师

已知一个五边形有4个角相等，剩余的第5个角比其他4个角小，问这4个角一样的角的度数范围？ 108-135 求may老师解答