利用聚乙二醇沉淀法检测CIC时,聚乙二醇的最终浓度为()。
A.1%~2%
B.2%~3%
C.3%~4%
D.4%~5%
E.5%~6%
参考答案:C
I will never know what was on his mind at the time, nor will _____. [ ]
A. anyone
B. anyone else
C. no one
D. no one else