每搏排出量的正常值范围约为（）。
A.40～70ml
B.50～80ml
C.60～90ml
D.80～110ml
E.90～120ml
参考答案：C
After a second thought, Jean a better method to deal with the problem.
A．put up with
B．came up with
C．added up to
D．made up for
裂解炉裂解深度由什么决定？
