（）共同构成了税款征收的基本环节。
A.申报纳税
B.优化服务
C.集中征收
D.强化管理
参考答案：A, B
根据释义写出单词。
1. s______ family name
2. a______ to receive (something offered),especially with gladness
3. w______ put paper round something
4. b______ one and the other
5. e______ get money from doing sth.
6. c______ to place something upon or over
7. r______ what you must, or mustn't at school etc.
8. a______ no matter what thing
分泌尿酸的部位是（）
A、入球小动脉
B、出球小动脉
C、近曲小管
D、集合管
