钻削是,主运动是外头的旋转运动,进给运动是外头的轴向移动。铣削时铣刀的()是主运动,工件的直线移动是()运动.
参考答案:旋转运动;进给
根据对话情景,填入恰当的单词,每空一词。
A: Who is your best friend, Holly?
B: Pete.
A: (1)_______ is he a good friend?
B: Because he likes to do the (2)_______ things as I do. He's popular, too, and he is good at (3)______.
A: Are you good at sports, too?
B: Well, I like sports, but Pete’s (4)_______ athletic than me. I’d say we’re (5)_______ pretty outgoing,
though.
A: Is he a lot like you?
B: No, not really. He’s a (6)_______ taller.
法的内容是由该社会的物质生活条件决定的,它通过规定社会关系主体的权利和义务,确认、保护和发展对统治阶级有利的社会关系和社会秩序。 ( )