—What do you think of Alice?
—She is very friendly. She always _______ the other students in her class.
A:argues with
B:fights with
C:does the same as
D:gets on well with
细粮中的营养物质比粗粮丰富.
能给我国带来严寒、大风、霜冻等恶劣天气的气象灾害是( )
如图所示,小明借利用滑轮组把货物提高h之际,体验测量滑轮组机械效率的实验,以下说法错误的是(S是人拉绳时绳子移动的距离)( )