问题
选择题
We often provide our children with toys, footballs or basketballs, ______ that all children like these things. [ ]
A. thinking
B. think
C. to think
D. thought
答案
答案：A
搜题请搜索小程序“爱下问搜题”
We often provide our children with toys, footballs or basketballs, ______ that all children like these things. [ ]
A. thinking
B. think
C. to think
D. thought
答案：A
某产品有5个功能F1、F2、F3、F4、F5，其中，一对一强制评分后的修正得分，各功能的现实成本如下表所示。
| 功能领域 | 修正得分 | 现实成本(元) |
| F1 F2 F3 F4 F5 | 3 4 3 5 2 | 2450 2660 1450 2880 960 |
| 合计 | 17 | 10400 |
注：计算过程中保留三位小数。
根据题意，回答下列问题：
F3的成本系数是（）。
A．0.136
B．0.139
C．0.236
D．0.256