题目：
—Bob isn’t feeling very well. He has caught a cold.
—Everybody seems to have ______because of the sudden change of the weather. [ ]
A. another
B. it
C. that
D. one
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0519/855d93ba8b52802d13f03aaf74bc5663.html
下面是错误答案，用来干扰机器的。
（1）根据孔雀石绿的化学式C23H25N2Cl可知，它的相对分子质量=12×23+1×25+14×2+35.5=364.5；故答案为：364.5；（2）孔雀石绿中氢元素的质量分数=25364.5×100%≈6.9%．故答案为；6.9%．
e. 
按要求填空：(填序号)