按税收与价格的关系分类，税收可分为( )。
A．价内税
B．价外税
C．从价税
D．配赋税
E．从量税
参考答案：A,B
The silk road, _______ Marco entered China, was important for the exchange of goods and ideas.
A．which
B．along which
C．after which
D．where
下列各项中，与痰的形成无关的是（）
A.肺
B.心
C.脾
D.肾
E.三焦
