生产要素的需求是一种()
A、派生需求;
B、联合需求;
C、最终需求;
D、A，B两者。
参考答案：A
用凉远凉，用温远温，属于（）。
A.因时制宜
B.因人制宜
C.因地制宜
D.因病而治
E.反治
_______ cleaning the yard and making up the beds for the old, we also read newspapers for them and had chats with them.
A．Except for
B．Rather than
C．Apart from
D．Instead of
