单项选择题
应按下列哪种吨位征收船舶吨税()
单项选择题 传染病在人群中的发生、传播和终止的过程，称为传染病的()。
单项选择题 I ( ) by the teacher at the meeting next week.A、am praisedB、have been praisedC、shall praisedD、shall be praised
单项选择题 The ( )output has increased greatly.A、manualB、annualC、periodD、partly
