【单选题】If you don't hurry up ,the train _____ by the time we get to the station .
【简答题】现代食品加工上对食品的要求是具有:__________; _________;__________,同时满足外观、风味、卫生、货架寿命、方便性、功能特性等要求。
【单选题】Don’t be in a hurry. We are supposed ____________ this problem step by step.
【单选题】We'll be late()we don't hurry.