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【单选题】
制造工艺简单、价格便宜，常用于制造承受冲击不大的重要零件，如小型柴油机曲轴等，此种材料为( )。A.
灰口铸铁
B.
低合金铸钢
C.
碳素钢铸钢
D.
球墨铸铁
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【简答题】骨性鼻中隔由前上部的________和后下部的________共同构成。
【简答题】As a new teacher, she has only (limit) ________ experience.
【简答题】No one except his own supporters ____(agree) with him. 2. Either he or I ____wrong. 3. Neither the students nor the teacher ____(know) anything about it. 4. Not only the students but (also) the teache...
【简答题】用所给词的正确形式填空 1. _________(stand )on the top of the hill, you can see as far as the sea. 2. Tony lent me the money, _____(hope) that I’d do as much for him. 3.The pupils are walking slowly, their teach...
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