题目

________ information ________ stored in this computer.A. Large quantities of; have been                        B. A great many; has beenC. A large quantity of; were                               D. Quite a lot; is 答案：A 若f(x)＝sin(ωx＋φ)的一部分图象如图所示，则ω和φ的取值是 [　　] A． B． C． D．