What is true about the survey? A.It was not designed by Pro Plumbing Outlet. B.It exists in both paper and electronic forms. C.It is expected to take five minutes to completE. D.It is designed to be taken by either merchants or customers.
A.It B. B.It C. C.It D. D.It
【参考答案】
A 解析：调查问卷的第一句话This survey is being conducted by OnlineSh......