申请人应该从何时开始缴纳发明专利维持费?
参考答案:
发明专利申请人自申请日起满2年尚未授予专利权的,自第三年度起应当缴纳申请维持费。
--Excuse me, can you tell me _______?
---Sure. There’s a good restaurant on Renmin Road.
A.where I can post letters
B.what movie I can see here
C.if there’s a good place to eat in
D.how I get to the bus station
测定肺换气效率的较好指标是