—You must be surprised and excited to see the film star here．—You’re right．________________．

题干

—You must be surprised and excited to see the film star here．
—You’re right．________________．

A：I don’t expect to see her here

B：I didn’t expect to see her here

C：I am expecting to see her here

D：I expected to see her here

上一题下一题 0.0难度选择题更新时间:2019-05-10 10:22:38

B

（Ⅰ）问电视台每周应播放两部影片集各多少集，才能使收视观众最多；

（Ⅱ）在获得最多收视观众的情况下，影片集甲、乙每集可分别给广告公司带来a和b（万元）的效益，若广告公司本周共获得3万元的效益，记S= $\frac{16}{a}$ + $\frac{10}{b}$ 为效益调和指数（单位：万元），求效益调和指数的最小值．