【多选题】流体动力润滑形成的必要条件: ; ; 。
【判断题】They felt relaxed when they said goodbye to their son.
【单选题】_________ is important to eat a balanced diet. [ ]
【单选题】他们为什么连续三年都到北海亭面馆吃面 ?
C.
因为北海亭面馆在当地最有名,大家都喜欢去那里吃。
D.
因为北海亭面馆的清汤荞麦面价格公道,用料足。
【简答题】流体动力润滑形成的必要条件: ; ; 。
【判断题】绘图时放大比例是比值大于1的比例,如2:1、5:1等。
【单选题】The author implied in the passage that most of us ___
B.
choose the food that is of nutrition
C.
have the habits influenced by the surroundings
D.
like to eat the food with a fragrant flavor