抗震工程学是将地球物理学、地质学、地震学、工程力学(材料力学、结构静力学、结构动力学)、结构工程学(钢筋混凝土结构学、钢结构学、地基与基础)、施工技术等多方面理论予以综合,针对建造的建筑物在地震作用下必须安全这一目的而产生一门科学体系。()
过境旅客的英文翻译是()
A.passenger in transit
B.transit passenger
C.transitmit passenger
D.passenger transition
A.非常抱歉的告诉您,您的航班由于天气的原因被延误了.
B.非常抱歉的告诉您,您的航班由于商务的原因被延误了.
C.非常抱歉的告诉您,您的航班由于航班的调配的原因被延误了.
D.非常抱歉的告诉您,您的航班由于机械故障被延误了.
A.苏美尔人使用楔形文字比阿拉美亚人使用脖尼基文字更早
B.西亚地区先前曾广泛使用过楔形文字,其后普及使用腓尼基文字
C.腓尼基的字母文字是叙利亚的阿拉美亚人率先习得的
D.阿拉美亚人的语言文字能在西亚普及,与他们的军事扩张和贸易开展有关
A. Promising laboratory test results still need to be confirmed by clinical studies before clinical recommendation could be given
B.Clinical trials with resin-bonded restorations that had no or only limited mechanical retention and were made from alumina or zirconia ceramic were identified using an electronic search in PubMed database.
C.Most original laboratory research reports on bonding to zirconia ceramics start in their introduction with a statement pointing more or less out that achieving a reliable and predictable bond to this ceramic would be a major problem in dentistry
D.No clinical trials with alumina ceramic IRFDFs or with RBFDPs made from densely sintered alumina ceramic were foun
Successful safety programs may【35】greatly in the emphasis placed on certain aspects of the program. Some place great emphasis on mechanical guarding. Others stress safe work practices by【36】roles or regulations.【37】others depend on an emotional appeal to the worker. But, there are certain basic ideas that must be used in every program if maximum results are to be obtained.
There can be no question about the value of a safety program. From a financial stand-point alone, safety【38】. The fewer the injury【39】, the better the workman's insurance rate. This may mean the difference between operating at【40】or at a loss.
(31)
A.at
B.in
C.on
D.with
Henry Ford changed the American society ______. ()
A.through great social revolution
B.through automotive technological revolution
C.through numerous mechanical inventions
D.through radical political reforms