河南成教 / 河南理工大学
正确率：100%
4[单选题]
Although each TV series will be rated on the basis of its usual content, the ratings can _____ from week to week.
A.flow
B.fluctuate
C.finite
D.flushing
Although each TV series will be rated on the basis of its usual content, the ratings can _____ from week to week.
参考答案：