The little girl eats chcolates. She thinks they are bad for her teeth.
A:almost
B:already
C:nearly
D:hardly
给下面图片配上相应的单词,选择字母编号填入。A. cleaning the house B. magazine C. bridge D. nurse E. scarf ____ ____ ____ ____ ____
﹣8的相反数是( )
如图所示,在一粗糙水平面上有两个质量分别为m1和m2的木块1和2,中间用一原长为L,劲度系数为k的轻弹簧连接起来,木块与地面间的滑动摩擦因数均为μ.现用一水平力向右拉木块2,当两木块一起匀速运动时两木块之间的距离是( )