题型:名词解释 —The artist has got _____ much work to do that he hardly has time to help his wife with the housework. —That’s true. Even on Sundays he is busy with his work.[ ]A. too B. so C. very D. such 查看答案
题型:名词解释 PFM的瓷层构筑是用瓷粉和专用液调和后在基底冠上堆塑成牙冠的方法。其构筑顺序依次是:遮色瓷、牙本质瓷、切端瓷和透明瓷在牙本质瓷、切端瓷和透明瓷的构筑过程中造成瓷层的层次结构变形的因素是()A.瓷泥调和过稠B.瓷泥吸水过度,振动过大C.各层瓷粉涂附时混合掺杂D.透明瓷过度构筑E.唇面体瓷过薄 查看答案