分析宽沸程多组分混合物时,下列说法正确的是()
A.柱温高于低沸点组分的沸点
B.柱温高于高沸点组分的沸点
C.采取程序升温
D.柱温采用固定液的最高使用温度
参考答案:C
— Mum! Jack has broken my toy car!
— Doesn't matter. ______.[ ]
A. One false step will make a great difference
B. God helps those who help themselves
C. Ill news travels fast
D. Accidents will happen