A:斐林试剂、苏丹Ⅲ
B:无水乙醇、层析液
C:无水乙醇、50%乙醇
D:龙胆紫、醋酸洋红
____, 只是朱颜改,问君能有几多愁?____。 (李煜《虞美人》)
I can tell you more about Thanksgiving Day.(变为否定句)
I ____ ____tell you more about Thanksgiving Day.
没 mò____ méi____
倒 dǎo____ dào____
行 xínɡ____ hánɡ____