下列应征收消费税的轮胎有( )。
A．子午线轮胎
B．翻新轮胎
C．拖拉机专用轮胎
D．拖拉机和汽车通用轮胎
参考答案：D
It is really a challenge for me to finish it. In order not to be disturbed, I spent three days ______ in my study surfing the internet to do the research.
A．locking
B．locked
C．to lock
D．lock
对单位的所有货币资金支付业务，都应当实行集体决策和审批。（ ）
