【单选题】选择汽车零件材料时( )不是要求所选材料满足的原则。
【简答题】阅读理解。 Michael is the kind of guy you love to hate. He is always in a good mood and always has something positive to say. One day I went up to Michael and asked him, 'I don't get it. You can't be posit...
【单选题】某船正浮时由海水进入淡水,漂心在浮心之前,则在淡水中时 (40525:第三章_吃水差:976)
【判断题】选择汽车零件材料时,要求所选材料满足使用性原则。