A:香茅醛能使Br2的CCl4溶液褪色
B:青蒿素分子式为C15H22O5
C:青蒿素含有和H2O2相同的过氧键
D:青蒿素能与氢气发生加成反应
把方程x2﹣4x﹣6=0配方,化为(x+m)2=n的形式应为( )
⑴Look at my new cap.____ A. Hello, Tim.
⑵What color is it?____ B. How nice!
⑶This is my brother, Tim.____ C. Goodbye
⑷Are you Bobby?. ____ D. Yes, I am.
⑸ Goodbye.____ E. It's red.
I think CimJereMa is ______ wonderful movie. It is worth watching.