动力工具根据动力原分那几类?各用什么作动力源?
参考答案:
:分气动和电动两类,气动工具用高压空气做动力源,电动工具以电流做动力源。
阅读综合填空。
Every morning, Jim (1)g______ to work by bus. As (因为) he has a long way to go, he always
(2)b______ a newspaper.It helps him to make the time pass (过) more (3)q______. He reads the
sports page. There is a report on an important football (4)m______. He is so interested in it that he
forgets to get (5)o______. He knows this when he looks (6)o______ of the window and sees the
sea. He gets off at another station and (7)h______ to wait a long time for a bus back. Certainly, he
is very (8)l______. His boss (老板) is very angry. He shouts at (9)h______. "Don't (10)b______
late next time."
根据《旅行社条例》规定,旅行社在旅游行政管理部门使用质量保证金赔偿旅游者的损失,或者依法减少质量保证金后,因侵害旅游者合法权益受到行政机关罚款以上处罚的,应当在收到旅游行政管理部门补交质量保证金的通知之日起()个工作日内补足质量保证金。
A.2
B.5
C.7
D.8