一般，剪切角增加，则（）。
A.切屑变形程度减小
B.切削力变小
C.切削变形系数变大
D.切屑底层与前刀面的摩擦加剧
参考答案：A, B
按要求进行句型转换。每空一词。
1. My computer game is in the bookcase . ( 对划线部分提问)
_____ _____ computer game?
2. His book is on the table . ( 变为一般疑问句, 并作否定回答)
_____ _____ book on the table?
No , it _____.
3. I can see the ball under the chair . ( 变为一般疑问句)
_____ _____ see the ball under the chairs?
4. Please take your brother the English book . ( 变为同义句)
Please _____ the English book _____ your brother .
5. It is on the dresser .( 变为复数句)
_____ _____ on the dresser .
( )是组成地壳的岩层，受构造力的强烈作用，使岩层形成一系列波状弯曲而未丧失其连续性的构造，它是岩层产生的塑性变形。
A．水平构造
B．褶皱构造
C．断裂构造
D．单斜构造
