基于“教”的教学设计模式中，有一个环节是“学习情境设计”。
参考答案：对
—Have you heard that George quit his job?
—Yeah, but I can't________why he did so.
A．put out
B．figure out
C．carry out
D．send out
参加职工互助保障计划有哪些好处？
