问题
选择题
Theses are his cousin’s first two __________paintings, which he likes very much.
A．little red French interesting oil
B．interesting little red French oil
C．interesting French little red oil
D．little red interesting oil French
答案
答案：B
CH3CH2CHO。由丁烯进行醛化反应也可得到醛，在它的同分异构体中，属于醛的有( )