A-A+
People have realized that resources are wasted
问题详情
People have realized that resources are wasted if goods_________.
A．are not of lasting value
B．are not sold at a high price
C．remain unsold for a long time
D．remained unsold in export markets
参考答案
正确答案：C
解析：第三段第二句话"It is only more recently．．．with in a reasonable time span”表明如果产品在一定时间内不以合理价格售出会造成资源浪费。
