省局在长沙市进行了车购税的委托代征，代征实施阶段包括（）。
A.发票开具
B.申报缴税
C.打印完税证明
D.档案归档
参考答案：A, B, C, D
— the team finished most of their research work?
—Yes, but the rest rather difficult.
A．Has, are
B．Has, is
C．Have, are
D．Have, is
干粉灭火器可有效地扑救（）、可燃气体、电气设备和一般固体物质火灾。
