缺陷是特殊的不合格。（）
参考答案：错
So quickly are science and technology advancing is a possibility today may be a reality tomorrow.[ ]
A. that which
B. that what
C. what
D. which
A．A的分子式为C4H10
B．B→D是消去反应
C．若A是正丁烷，则8．C无法得到同一种物质D
D．B、C互为同分异构体
