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【单选题】
基准制的选用通常依标准件而定，例如标准中规定与滚动轴承内圈配合的轴采用（）。
A.
基轴制
B.
基孔制
C.
基轴制和基孔制
D.
任选一项
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】In the last two hundred years there have been great changes in the method of production of goods. This is now also true of the building industry; for mechanization has been introduced. System building...
A.
the latter uses ready-made internal features
B.
panels are cast in a level position
C.
the former is used to build walls and floors while the latter to construct bathrooms or bedrooms
D.
the former is more expensive than the latter