单项选择题__________ is a concept that places recycling at the beginning or design stage of the materials cycle to ensure that waste going into municipal landfills will be minimized. A、design for assembly B、design for disassembly C、green design D、input output inventory
单项选择题心肺复苏(CRP)的三个步骤是: A、ABC B、ACB C、CAB D、CBA E、BAC