色变档
参考答案：
指通常情况下色差，可以突发或渐渐的，这不认为是确定的色档。
______ the help this computer may provide, it should not be seen as a substitute for fundamental thinking and reasoning skills.
A．For all
B．Even with
C．But for
D．In case of
圆柱齿轮与轴如何装配？
