She's read the book, _______?[ ]
A. isn't she
B. doesn't she
C. hasn't she
D. wasn't she
答案:C
对接受单个调研项目达到15分钟及以上的客户,须设置()的免打扰期。
A.一个月;
B.二个月;
C.三个月;
D.四个月。
经济增长