企源知识库

有一种策略叫市场调整，指的是销售部经理们去寻求新用户、占领新市场。比如说，现在学生们大量使用的双肩背包当初是为军用而设计的，不知你是否知道此事?
【正确答案】：Did you know, for example, that the backpacks that so many students carry today were originally designed for the military?（考点：疑问句的句序调整）