It would take him the rest of his life to ______ that loan.

A. pay
B. pay for
C. pay off
D. pay out

Youth hostels (青年寄宿旅店), ________ hotels, are not run for the purpose of making money.

A. like
B. unlike
C. alike
D. dislike

____ and disorder might well spread throughout the entire Middle East.

A. Contempt
B. Confusion
Conference
D. Conjunction

These encouragements gave me greater ________ in overcoming difficulties.

A. foundation
B. inquiry
C. option
D. confidence

We have worked for more than eight hours. ______ a walk?

A. Shall we
B. Do you think
C. What about
D. Let's

_____ a slight improvement in sales, the company is still making a loss.

A. In spite that
B. In spite of
C. Despite that
D. In spite

评定工件材料切削加工性的主要指标是一定刀具寿命下的（ ）和（ ）。

改善工件材料切削加工性的措施有进行适当的（ ），调整材料的（ ），合理选择（），合理使用切削液等。

切削液的最主要作用是（ ）和（ ）。

切削加工时，刀具的前角越大，切削力越（ ），刀具科越（ ）（锋利/钝）。