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【单选题】
在主轴加工中选用支撑轴颈作为定位基准磨削锥，符合()原则。A.
基准统一
B.
基准重合
C.
自为基准
D.
互为基准
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反馈参考答案：
举一反三
【简答题】根据所听句子，选出正确的答句并排序，将序号填在句前括号里。 ( ) That red one. ( ) Yes, it is. ( ) Yes, let's go. ( ) All right. ( ) It's eight. ( ) No, Tom is not here. ( ) She's a nurse. ( ) She's ...
【单选题】火眼金睛，选出合适的答句。 ( ) How many books do you have? ( ) Where is my book? ( ) How are you? ( ) Nice to meet you. ( ) What colour is it?
A.
Fine, thanks.
B.
It's purple.
C.
Nice to meet you, too.
D.
It's on the desk.
E.
Five.
【简答题】听问句，选出正确的答句。 ( ) 1. A. She likes to run. B. He likes to swim. ( ) 2. A. I go there buy bus. B. She goes there by truck. ( ) 3. A. Her hair is brown. B. His hair is black. ( ) 4. A. He ...
【简答题】面团调制后放在案板上,盖上洁净湿布,静置一段时间,这个过程叫做( )。
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