按照征税对象划分税种体系，房产税、契税属于（ ）。
A．资源税类
B．所得税类
C．财产税类
D．特定行为税类
参考答案：C
There was a fire in the street last night, but the firemen _______within twenty minutes. [ ]
A. took it out
B. brought it out
C. worked it out
D. put it out
40L，15MPa的永久气体气瓶每瓶充装流量不得大于（）（标准状态）。
A.2m3/h
B.6m3/h
C.8m3/h
D.10m3/h
