根据支承表面的摩擦性质,轴承分为()和滚动轴承两大类。
参考答案:滑动轴承
—I didn't do well in the exam.
—______. I'm sure you can do better next time.[ ]
A. So you did.
B. Take your time.
C. Take it easy.
D. Make yourself at home.
小红家上月5日自来水表的读数为5344m3,本月5日自来水表各指针的位置如图所示,这时水表的示数是_______m3,所以一个月来她家用去_______ m3(读数到m3).