契税的比例税率浮动的幅度为（）。
A．2%～4%
B．3%～5%
C．3%～6%
D．5%～7%
参考答案：C
解析：
契税采用幅度比例税率(3%～5%)
There _____ a computer on the desk.[ ]
A. are
B. have
C. has
D. is
If you ____ the chat room ten minutes ago, you ____ what we were talking about.
A．have joined; will know
B．would join; have known
C．should join; would know
D．had joined; would have known
