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Imagine,one day,getting out of bed in Beijing and being at your office in Shanghai in only a couple of hours,and then,after a full day of work,going back home to Beijing and having dinner there. Sounds unusual,doesn't it? But it's not that unrealistic,with the development of China’s high—speed railway system.And that’s not a11.China has an even greater high—speed railway plan—to connect the country with Southeast Asia,and eventually Eastern Europe. China is negotiating to extend its own high·-speed railway network to up to 17 countries in 1 0 to 15 years,eventually reaching London and Singapore. China has proposed three such projects.The first would possibly connect Kunming withSingapore via Vietnam and Malaysia.Another could start in Urumqi and go through Kazakhstan and Uzbekistan,and possibly to Germany.The third would start in the northeast and go north through Russia and then into Western Europe. If China’s plan for the high-speed railway goes forward,people could zip over from London to Beiling in under two days. The new system would still follow China’s high—speed railway standard.And the trains would be able to go 346 kilometers an hour,almost as fast as some airplanes. China’s bullet train(高速客车),the one connecting Wuhan to Guangzhou,already has the World’s fastest average speed.It covers 1,069 kilometers in about three hours. Of course,there are some technical challenges to overcome.There are so many issues that need to be settled,such as safety,rail gauge(轨距),maintenance of railway tracks.So,it’s important to pay attention to every detail. But the key issue is really money.China is already spending hundreds of billions of yuan on domestic railway expansion. China prefers that the other countries pay in natural resources rath er than with capital investment.Resources from those countries could stream into China to sustain development. It’11 be a win-win project. For other countries,the railway network will definitely create more opportunities for business,tourism and so on,not to mention the better communication among those countnes. For China,such a project would not only connect it with the rest of Asia and bring some much-needed resources,but would also help develop China’s far west.We foresee that in the coming decades,millions of people will migrate to the western regions,where the land is empty and resources unused.With high-speed trains,people will set up factories and business centers in the west once and for a11.And they’11 trade with Central Asian and Eastern European countries. 1.China’s new high-speed railway plan will be a win-win project because ____________. A.China will get much-needed resources and develop its western regions B.China and the countries involved will benefit from the project in various ways C.China will develop its railway system and communication with other countries D. the foreign countries involved will develop their railway transportation,business and tourism 2.According to the passage,the greatest challenge to the new high-speed railway plan is____________. A.technical issues    B.safety of the system C.financial problems  D.maintenance of railway tracks 3.Which of the following words best describes the author’s attitude towards China’s high-speed railway plan? A.Critical.    B.Reserved.    C.Doubtful     D. Positive. 4.Which of the following might be the best title for the passage? A.New Railway Standards    B.Big Railway Dreams C.High—speed Bullet Trains D.International Railway Network
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【判断题】当新法与旧法冲突时,为照顾群众利益,应适用旧法,并缓慢过渡为新法的规定。( )
A.
正确
B.
错误
【简答题】(2019· 海南省考前压轴卷 ) 细胞中的元素和化合物是细胞生命活动的物质基础。下列相关叙述中正确的是 ( ) A. 种子在晒干过程中失去了大量的结合水,所以种子的代谢强度降低 B. 植物细胞中的主要储能物质和直接供能物质分别是淀粉和 ATP C. 某有机物分子的元素组成是 C 、 H 、 O 、 N 、 P 、 S ,则该有机物是核酸 D. 磷脂、脂肪的组成元素和核苷酸的组成元素相同
【单选题】以下对包的描述不正确的是()。
A.
包的可见性可以控制其内部元素的可见性
B.
同一个包中的元素不允许重名
C.
包是UML中最重要的结构事物之一
D.
不同包中允许出现同名元素
【单选题】下列醇与HBr反应速率最快的是:
A.
叔丁醇
B.
甲醇
C.
丁-1-醇
D.
丁-2-醇
【单选题】基础施工的一般操作程序是( ),放实物线、支外模、绑钢筋。
A.
开挖、清底、浇混凝土垫层
B.
放线、开挖、清底、浇混凝土垫层
C.
开挖、支内模、浇混凝土垫层
D.
放线、支内模、清底、浇混凝土挚层
【单选题】基础施工的一般操作程序是()、放实物线、支外模、绑钢筋。
A.
开挖、清底、浇混凝土垫层
B.
放线、开挖、清底、浇混凝土垫层
C.
开挖、支内模、浇混凝土垫层
D.
放线、支内模、清底、浇混凝土垫层
【单选题】下列醇与HBr反应速率最快的是:
A.
叔丁醇
B.
甲醇
C.
丁-2-醇
D.
丁-1-醇
【单选题】下列有关组成生物体化学元素和化合物的论述中,不正确的是 [     ]
A.
N、P元素是组成ATP、DNA、RNA不可缺少的成分
B.
组成生物体的化学元素在无机自然界都可以找到
C.
对细胞膜的选择透过性起主要作用的是蛋白质
D.
作为生物催化剂的酶中一定含有肽键
【判断题】煤中有机质是复杂的高分子有机化合物,主要由碳、氢、氧、氮、硫和磷等元素组成,而碳、氢、氧三者总和约占有机质的95%以上
A.
正确
B.
错误
【单选题】烃类是由碳和()两种元素所组成的一类有机化合物,主要来源于天然气、石油和煤的加工产物。
A.
B.
C.
D.
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