During economic depression, people enter the street food business because A．they have nothing else to do B．it needs no capital and other costs C．they know nothing about other fields D．it requires little fund and expert knowledge
A.they B.it C.they D.it
【参考答案】
D 根据题干的economicdepression“经济萧条”定位到第三段第二句：Inarecession，pe......