【单选题】
农村信用社、村镇银行、农村资金互助社、由银行业机构全资发起设立的贷款公司、法人机构在县（县级市、区、旗）及县以下地区的农村合作银行和农村商业银行提供金融服务收入，简易计税（ ）。
①
1%
②
2%
③
3%
④
4%
【单选题】
The monument(里程碑) was built in honor of the explorer who was believed________the river.
①
to have discovered
②
to have been discovered
③
to discover
④
having been discovered