Brunnstrom分级Ⅰ级()。 A.无任何运动 B.可随意发起协同运动 C.出现

题型:单项选择题 B型题

问题:

Brunnstrom分级Ⅰ级()。

A.无任何运动

B.可随意发起协同运动

C.出现相对独立于协同运动的活动

D.仅出现协同运动的模式

E.出现脱离协同运动的模式

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题型:单项选择题 B型题

蔗糖于20℃时的比旋度是

A.Kedde反应
B.Vitali反应
C.Keller-Kiliani反应
D.Marquis反应
E.坂口反应

题型:单项选择题 B型题

By 2010 the European Commission predicts transcontinental freight traffic will have risen 50 percent as a result of European expansion, and much of that will have to cross the enormous obstacle of the Alps. Right now the only practical way for most heavy traffic to get through is by truck and tunnel. And while that could change if safer and cleaner rail lines were opened, the chances are that won’t happen anytime soon.

Several private trucking companies have adapted quickly and creatively to the demands of European unification. Some of the bigger truckers trace cargoes with the Global Positioning System and sophisticated computers. And if trucks also bring more road hazards and pollution, at present there is no alternative. Right now only 8 percent of European merchandise moves by rail, compared with more than 40 percent in the United States. Delays are so common that the average speed for freight is about 18km an hour.

The railways have had trouble outgrowing a heritage of national rivalries and open warfare between Europe’s countries. The result is what another European Commission report calls "a mosaic of badly interconnected national systems. " Language barriers remain a problem, requiring crew changes at some borders. Switching systems and signals differ.

And efficiency is more of a dream than a goal. Europe’s railroads still have to deal with "phantom trains" that run so late that they combine with others and disappear from the railroad’s records. In an era when many companies depend on a "just-in-time" inventories to make a profit, railroads are rarely on time at all.

Yet there is little official enthusiasm for changing the system. The reality is that governments have helped create the imbalance between road and rail in Europe—and government action will likely be needed to fix it. The French emphasis on using rail to move people instead of goods, for instance, has helped cripple freight service. "All the investments went to passenger traffic," says Denis Douté, director of freight services for the French rail company SNCF. Freight trains have had to find "windows" to run in between passenger trains, unlike those in the United States, which often travel on separate tracks. The further development of the freight network requires massive investments to modernize existing infrastructure and open new ones. However, the political will to fund that kind of investment is lacking, which means the citizens will have to hold their noses for a while longer.

Denis Douté thinks that ().

A. European governments have much difficulty in improving the railway system

B. freight trains in United States often travel on separate tracks

C. the French government puts too little emphasis on the freight traffic

D. the surplus passenger trains should be changed into freight trains

题型:单项选择题 B型题

在工程量清单的编制步骤中,查阅设计文件的目的是()。

A.描述清单项目特征

B.分析拟建安装工程构成

C.设定清单项目

D.计算清单项目工程量

题型:单项选择题 B型题

宁夏东西最宽处为多少公里?

题型:单项选择题 B型题

一种两侧肾脏下极相连接的先天异常称为()。

A.重复肾

B.马蹄肾

C.驼峰肾

D."S"形肾

E.游走肾

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