已知x-1+1-x=y+4,n+24n是整数,则正整数n的最小值与xy的平方根的

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问题:

已知
x-1
+
1-x
=y+4,n+
24n
是整数,则正整数n的最小值与xy的平方根的积为______.
考点:二次根式的定义
题型:填空题

Can you _____________ all the answers to the questions?[ ]

A. look

B. look for

C. find

题型:填空题

现行营业税按次纳税的起征点为每次 (日)营业额( )元。

A.50

B.100

C.60

D.150

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  Alex London Research Laboratory (ALRL) is part of Alex Co., Ltd., a major Australian medicine-making company. Opened in 1992, ALRL specializes in the development of new medicines for the treatment of heart diseases.

A position is now open for a Research Operations Manager(ROM) to support our growing research team at the new laboratories in Hatfield,due to open in the autumn of 2010.

Reporting to the Director,you will help set up and run the technical and scientific support services of our new laboratories now under construction.You will be expected to provide expert knowledge about and be in charge of all areas of ALRL’S Health and Safety,and to communicate (沟通)with support employees at ALRL’S laboratories based at University College London.Working closely with scientists and other operations and technical employees,you will manage a small number of research support employees providing services to help with the research activities to be carried out at the new laboratories.

Candidates(申请人) will have experience of both management and research support/technical services.Knowledge of research operations and excellent communication skills are necessary. Education to degree level is also desirable.

If you are interested in this position,please send your CV(简历)to Alex London Research

Laboratory,University College London,Hatfield,London,W1E 6B7 or by email to ALRL@alex.co.uk.

For more Information.please visit www.alex.co.uk.

小题1: What can be learnt about the new laboratories from the text?

A.They have not yet been set up.

B.They are in Hatfield,Australia.

C.They belong to University College London.

D.They are new workplaces for Australian researchers only.小题2: What are the duties of a ROM,according to the text?

A.a,b,c.

B.a,b,d.

C.b,c,d.

D.a,c,d.小题3:. What does the fourth paragraph mainly talk about?

A.The technical skills of a would—be ROM.

B.The practical experience of a would—be ROM.

C.The personal information of a would—be ROM.

D.The necessary requirements for a would—be ROM.小题4: What is the purpose of the text?

A.To describe the job of a ROM.

B.To provide information about ALRL.

C.To announce an open position at ALRL.

D.To make known the opening of the new laboratories.

题型:填空题

说明循环式制动压力调节装置的工作原理。

题型:填空题

严禁往电器设备、电缆沟、电缆线路上乱丢油棉纱、木材及其它易燃易爆物品。

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