题目

如图所示是某校学生设计制作的桥梁模型，现要求测试该模型的稳定性和强度，提供不同质量的砝码若干，请设计简易试验方案，并回答问题。 （1） 进行模型的稳定性试验，确定模型不发生翻转时所能承受的最大载荷（在给定的示意图上表示试验方法，用文字说明主要步骤）。 （2） 进行模型的强度试验、确定模型中部能随的最大载荷（在给定的示意图上表示试验方法，用文字说明主要步骤）。 （3） 如果要提高模型的稳定性， 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．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．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．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．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．