As it is with traditional pharmacies, on-line drugstores rely onprescriptions to be successful, since it is primarily prescriptions thatattract the customers, who then also buy other health-related items. (A) As it is with traditional pharmacies, on-line drugstores rely onprescriptions to be successful (B) As with the case of traditional pharmacies, on-line drugstoresrely on prescriptions to have success (C) As is the case withtraditional pharmacies, prescriptions are the cornerstone of a successful on-line drugstore (D) As traditional pharmacies, so on-line drugstores rely onprescriptions to be successful (E) Like traditional pharmacies, the cornerstone of a successfulon-line drugstore is prescriptions
请教,这个题目答案为什么是C呢?请各位大牛帮忙分析一下吧~ |