问题
选择题
He thinks I'm too easy-going. It doesn't matter, ______. [ ]
A. although
B. as
C. while
D. though
答案
答案：D
搜题请搜索小程序“爱下问搜题”
He thinks I'm too easy-going. It doesn't matter, ______. [ ]
A. although
B. as
C. while
D. though
答案：D
某同学在研究滑动摩擦力的大小跟哪些因素有关的实验中，得到下列数据，请你分析实验数据，并写出每一个表格的到的结论．
表一
| 次数 | 接触面 | 压力/N | 摩擦力/N |
| 1 | 木块和木板 | 2 | 0.4 |
| 2 | 4 | 0.8 | |
| 3 | 8 | 1.6 |
| 次数 | 接触面 | 压力/N | 摩擦力/N |
| 1 | 木块和木板 | 2 | 0.4 |
| 2 | 木块和棉布 | 0.9 | |
| 3 | 木块和毛巾 | 1.2 |
（2）由表二可以得出的结论是：______．