In the 18th century, New York was smaller than Philadelphia and Boston. Today it is the largest city in America. How to explain the change in its size and importance
To answer this question we must consider certain facts about geography, history and economics. Together these three will explain the huge growth of America’s most famous cities.
The map of the Northeast shows that four of the most heavily-populated areas in this region are around seaports. At these points materials from across tile sea enter America, and the products of the land are sent there for export across the sea.
Economists know that places where transportation lines meet are good places for making raw materials into completed goods, That is why seaports often have cities nearby. But cities like New York needed more than their geographical location in order to become great industrial centers. Their development did not happen simply by chance.
About 1815, when many American
A. the decline in taxes
B. the construction of the railroads
C. the construction of the Erie Canal
D. the development of industry
In 1998 consumers could purchase virtually anything over the Internet. Books, compact discs, and even stocks were (1) from World Wide Websites that seemed to (2) almost daily a few years earlier, some people had predicted that consuners accustomed to shopping in stores would be (3) to buy things that they could not see or touch (4) . For a growing number of time-starved consumers, however, shopping from their home computer was proving to be a convenient (5) to driving to the store.
A research estimated that in 1998 US consumers could purchase $ 7.3 billion of goods over the Internet, double the 1997 total. Finding a bargain was getting easier, (6) the rise of online auctions and Websites that did comparison shopping on the Internet for the best (7) .
For all the consumer interest, (8) in eyberspaee was still a largely (9) business, however. Internet pioneer Amazon. eom, which began sell
A. Because of
B. Apart from
C. Despite
D. Though
| Young people in the early 1980s are
taking on a set of attitudes and values remarkably different from those of the
stormy’ 60s and ’70s. Instead of anti-establishment outbursts, today’s younger
generation had turned more thoughtful and more serious. There is heightened
concern for the future of the country and a yearning for the traditions and
support systems that gave comfort in the past. Many young men and Women of
high-school and college age are having second thoughts about the "new morality"
and condemn what a soaring divorce rate has done to families. They speak openly
of gaining strength from religion. Patriotism, too, seems to be making a modest
comeback. One change in the early 1980s is a questioning of the permissive moral climate of recent years. More young people, while hesitant to preach or to condemn their peers, cite th A. The are more thoughtful and serious. B. They have concern for the future of the country. C. They have a yearning for the traditions. D. They don’t like adult world. [单选题]赫茨伯格的双因素理论认为（ ）不是激励因素。
A.责任感 B.成就感 C.工资 D.成长需要 [单选题]限制非手术人员进入手术间，减少人员走动，跟台人员必须距离手术人员至少多少厘米以上？
A.20 B.30 C.40 D.25 [简答题]无缝线路的单元轨节实际锁定轨温如何确定？
[单项选择]牧羊犬，突然发病，表现为双相热型，腹泻，眼、鼻流出脓性分泌物。取鼻分泌物接种Vero细胞，分离到一种具有血凝活性的RNA病毒。该病例最可能的病原是（）
A. 犬细小病毒 B. 犬瘟热病毒 C. 狂犬病病毒 D. 犬传染性肝炎病毒 E. 伪狂犬病病毒 [判断题]洗井清蜡车洗井结束后,需冷却锅炉,将车载泵、炉内的水排空,将井口倒回正常生产流程后方可离开。
A.正确 B.错误 [判断题]使用武力就可能造成执法对象受伤或死亡,因此,在依法使用武力的前提下,还必须树立“慎用武力”理念。(1.0分)
A.正确 B.错误 [多选题]《国家电网公司安全工作规定》第一百零六条规定:公司各级单位应按照职责管理范围,从( )等各个环节,对发生安全事故(事件)的单位及责任人进行责任追究和处罚。
A.规划设计 B.招标采购 C.施工验收 D.生产运行 E.教育培训 [单选题]上颌结节阻滞麻醉，如针头污染可引起哪个间隙感染
A.颞下间隙 B.眶下间隙 C.咬肌间隙 D.翼下颌间隙 E.下颌下间隙 [单项选择]血友病A为（）
A. 常染色体隐性遗传 B. 多基因遗传病 C. X连锁隐性遗传 D. X连锁显性遗传 E. 染色体畸变遗传病 [单选题]《消防法》规定,举办大型群众性活动,承办人应当依法向()申请安全许可。
A.公安机关 B.公安机关法制部门 C.消防救援机构 D. 当地政府 [判断题]()机器人二自由度腕部关节有RR、BB 、RB 三种表示方法。
A.正确 B.错误 [判断题]130. 汽缸盖的进、排气门座面都设计有锥角。
A.正确 B.错误 [简答题]1 消防员及干部退出仪式相关要求？
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