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【单选题】
材料为45钢的硬齿面齿轮常用的热处理方法是（）A.
表面淬火
B.
渗碳
C.
渗碳淬火
D.
碳氮共渗
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反馈参考答案：
举一反三
【简答题】Read and draw.（读短文，选择正确的答案） Tom has a beautiful bedroom (卧室). In his bedroom, there is a desk beside (在...旁边) the window. On the desk, it's his English book. Under the desk, it's his football. There...
【单选题】his bedroom to get on with it【C3】______,
A.
quickly
B.
quietly
C.
carefully
D.
attentively
【简答题】连词组句。 1. have, I, a, bedroom . 2. shoes, his, are, his, bed, below . 3. in, the, evening, bed, goes, to, he ___________________________. 4. His, lamp, his, bed, beside. Is ___________________________....
【简答题】“用银行存款偿还银行借款”导致资产( )、负债( )、所有者权益( )。【每个空格均可填“增加”、“减少”或“不变”】
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