下列化合物中,分子间不能发生羟醛缩合反应的是()。
A.A
B.B
C.C
D.D
参考答案:D
He is a student at Oxford University, ____for a degree in computer science.
A.studied
B.studying
C.to have studied
D.to be studying
猜猜我是谁
1.粗豪,豪放。( )
2.极热。( )
3.充足而旺盛。( )
4.东西太多,眼睛看不过来。( )