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【单选题】
下列关于粉尘性质的描述,错误的是( )A.
粉尘的分散度越大，粉尘的比表面积就越大
B.
粉尘的分散度越大，在空气中的悬浮时间就越短
C.
粉尘中颗粒小的粒子越多，对人体的危害就越大
D.
生产环境中携带有相同电荷的粉尘，在空气中悬浮时间会延长
E.
一些无毒的粉尘，溶解度大，利于从机体排出
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举一反三
【单选题】A person who believes in his incompetence will ______.
A.
make no real efforts
B.
fail to go at a job
C.
show a complete lack of confidence
D.
all of the above
【单选题】The author believes that an individual who applies to work overseas ______.
A.
is usually creative and full of initiative
B.
aims to improve his foreign language skills
C.
is dissatisfied with his own life at home
D.
seeks either his own or his Children's development
【单选题】He is a man who believes in strict()and he seldom deviates from his principles.
A.
wisdom
B.
brotherhood
C.
worship
D.
discipline
【单选题】A person who believes in his incompetence will ______.
A.
make no real efforts
B.
fail to go at a job
C.
show a complete lack of confidence
D.
All of the above.
【多选题】下列导游人员职责中,属于全陪导游员的有( )。
A.
负责旅游团各站之间的衔接
B.
带领旅游团游客参观游览
C.
向旅游团在各地的活动日程
D.
监督组团社接待计划实施
E.
安排旅游团在各地的活动日程
【多选题】旅行社接受委托提供的旅游服务包括( )
A.
接受旅游者王强的委托，为其代订高铁客票10张；
B.
接受丽丽的委托为其办理签证手续；
C.
接受某社会团体的委托，为其在海南三亚的会议代订酒店和会务中心。
D.
为小李代办护照
E.
接受吉峰有限公司的委托，为其代办坝上草原观光度假事宜。
【单选题】The Business of Wedding Every couple who goes to the altar (圣坛) believes that they will make that trip only once in their lives, They want the day to be perfect, and they are asking for much more than...
A.
The budgets of weddings.
B.
The business of weddings.
C.
The planning and execution of weddings.
D.
The high wedding expenses.
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