K-T气化法特点？
参考答案：温度高、气化强度大；煤种适用性强；需庞大的磨粉、余热回收、除尘装置；干粉进料（难度）。
_________ that it's very cruel to kill wild animals for money.
A．It is no doubt
B．There is no doubt
C．It is not doubt
D．There is not doubt
