英国科学家最近指出，根据目前已有的建筑技术，人们完全能够建造出高抗震性能的房屋，减少地震带来的人员伤亡和物资损失。现在问题的关键是：除地区和建筑物本身有所差异外，抗震建筑的成本一般来说都相当昂贵。 牛津大学工程科学系的布莱克伯勒认为，建筑物抗震能力的大小，主要由4个因素决定：一是建筑物下的土质及地面的移动量有多少能转移到建筑物下的土质上来；二是支撑的数量；三是支柱的牢固性；四是采用何种方式减少横摆度。他解释说，如果建筑物下面是坚硬的石质结构，则十分有利于抗震；但目前大部分建筑物都建在泥土上，泥沙和填土在遇到地震压力时，常常会液化，从而使建筑物从根基部位倒塌；布莱克伯勒认为，在地基处堆放一些起排流作用的大石堆，就可有效防止泥土流失。另外，在建筑物下安放巨型弹簧，也可使建筑物与地面隔离，不受地面移动的影响。但是，他认为，如果地面移动太远，巨型弹簧就不再适用，而且有些附加设备，例如供残疾人使用的轮椅坡道等，就会将建筑物与地面重新连接起来，削弱弹簧的功效。对于防止横摆，布莱克伯勒说，日本建筑的做法值得借鉴。他们通常在屋顶放置大型重物，利用水压活塞使重物运动，且运动方向与地面横移方向相反，抵消了横移的影响，从而把建筑物的横摆度减到最小。英国科学家认为，将巨型弹簧、牢固的支柱、水压活塞及屋顶重物等方法相结合，肯定能抵抗地震灾害，只是因其成本高昂现在无人敢于问津。
对于设置巨型弹簧的做法的分析，不恰当的一项是（）
Historians tend to tell the same joke when they are describing history education in America. It’ s the one (71) the teacher standing in the schoolroom door (72) goodbye to students for the summer and calling (73) them, "By the way, we won World War Ⅱ."
The problem with the joke, of course, is that it’s (74) funny. There cent surveys on (75) illiteracy (无知) are beginning to numb (令人震惊): nearly one third of American 17-year-olds cannot even (76) which countries the United States (77) against in that war. One third have no (78) when the Declaration of Independence was (79) . One third thought Columbus reached the New World after 1750. Two thirds cannot correctly (80) the Civil War between 1850 and 1900. (81) when they get the answers right, some are (82) guessing.
Unlike math or science, ignorance of history cannot be (83) connected to loss of internati
A. sense
B. doubt
C. reason
D. idea
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{{B}}Meet Thomas Kingsley{{/B}} Thomas Kingsley works for Meridian Finance in East London. He works as a sales executive. He{{U}} (29) {{/U}}with a large number of small and medium-sized businesses in the London area. He{{U}} (30) {{/U}}them on the best financial products for their needs. He is only in{{U}} (31) {{/U}}office in the morning when he discusses clients{{U}} (32) {{/U}}the Sales Manager. Then he travels around London to see his clients. He informs them about new products on the market. He keeps a{{U}} (33) {{/U}}of any changes in the clients’ information [单项选择]（）刘备听从了关羽的劝说，将印绶放在何处，宣告辞职？
A. 挂在树上 B. 放在案上 C. 放于督邮手中 D. 挂在督邮脖子上 [单选题]在三相四线制的交流供电系统中,其中线电流( )。
A.较大,不可去掉中线 B.始终为0,可以去掉中线 C.始终大于0,不可去掉中线 D.在三相负载平衡时为0,可以去掉中线 [简答题]In relation to the law of contract, explain and distinguish the following terms of a contract:
(b) Warranties; (3 marks)
[单项选择]
First Self-contained Heart Implanted A. patient on the brink of death has received the world’s first self-contained artificial heart — a battery-powered device about the size of a softball that runs without the need for wires, tubes or hoses sticking out of the chest. Two surgeons from the University of Louisville implanted the titanium and plastic pump during a seven-hour operation at Jewish Hospital Monday. The hospital said the patient was "awake and responsive" Tuesday and resting comfortably. It refused to release personal details. The patient had been expected to die within a month without the operation, and doctors said they expected the artificial heart to extend the person’s life by only a month. But the device is considered a major step toward improving the patient’s quality of life. The new pump, called AbioCor, is also a technological leap from the mechanical hearts used in the 1980s, which were attached by wire A. Right B. Wrong C. Not mentioned [单项选择]上述关于麝香的药理作用，错误的是（）
A. 促进渗透 B. 抗心肌缺血 C. 抗炎 D. 抑制中枢 E. 诱导肝药酶 [单选题]除另有规定外，装用双作用弹性旁承的铁路货车，同一辆车4个弹性旁承组成安装须同侧同向，同一转向架（）。
A.正向 B.反向 C.相对 D.相反 [单选题]按照NB/T47016-2011制作产品焊接试件，普通碳钢、低合金钢一般要求理化试验项目至少为（ ）
A.拉伸、弯曲、化学分析 B.拉伸、弯曲、硬度 C.拉伸、弯曲、冲击 D.拉伸、硬度、冲击 我来回答: 提交
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