根据我国宪法规定，以下哪些人员可以获得物质帮助的权利：

A．年老者

B．疾病者

C．退休者

D．丧失劳动能力者

Which of the following documents is not used as input for product acceptance ？（）

A．The project scope statement，it describes the acceptance criteri

B．The project scope management plan，it describes the acceptance proces

C．The work breakdown structure(WB，it describes the deliverables for acceptanc

D．The RACI matrix，it describes accountabilities in case of product rejectio