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【单选题】
_____可以加工圆柱体、圆锥体等各种回转表面的物体、螺纹以及各种盘类工件，并进行钻、扩、镗等加工。A.
数控铣床
B.
数控磨床
C.
数控车床
D.
立式加工中心
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【单选题】The author uses the word 'euphemism' as an example to maintain that______.
A.
you can't understand the exact meaning of an unfamiliar word according to its surrounding words
B.
you can always guess the meanings of difficult words because of the context
C.
you express yourself in an indirect and less harsh way sometimes
D.
you can sometimes find clues to the meanings of unfamiliar words in their context
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