单项选择题

车削外圆表面时，若刀尖低于工件回转轴线，则工作前角( )。

A．增大
B．不变
C．减小

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Directions: Fill in the blanks in the sentences with the words given in the box.
(1) speculate (2) adjust (3) invest (4) accelerate (5) imitate
(6) thrust (7) protested (8) diagnosed (9) distinctive (10) preserve
I was embarrassed as an American for having _____ such an awful concept upon the French, saying that the French hated the idea of the theme park, Euro Disney.

答案： thrust

多项选择题

从古代到近代，自然法的要义和旨趣发生了怎样的变化？
A. 从追求人性完满到寻求自身安全的变化 B. 从追求灵魂得救到寻求生命得救的变化 C. 从以义务为本到以权利为本的变化