问题
选择题
Though _____ focus from work to family, the 34-year-old actress refuses to be a full-time housewife. [ ]
A. having shifted
B. to have shifted
C. shifted
D. being shifted
答案
答案：A
搜题请搜索小程序“爱下问搜题”
Though _____ focus from work to family, the 34-year-old actress refuses to be a full-time housewife. [ ]
A. having shifted
B. to have shifted
C. shifted
D. being shifted
答案：A
( 本题10分) 某批发商欲将一批海产品由A地运往B地，汽车货运公司和铁路货运公司均开办了海产品运输业务．已知运输路程为120千米，汽车和火车的速度分别为60千米/时和100千米/时．两货物公司的收费项目和收费标准如下表所示：
小题1:（1）设该批发商待运的海产品有x（吨），汽车货运公司和铁路货运公司所要收取的费用分别为y1（元）和y2（元），试求出y1和y2和与x的函数关系式； 小题2:（2）若该批发商待运的海产品不少于30吨，为节省运费，他应该选择哪个货运公司承担运输业务？ |