America’s economic recovery remains uncomfortably weak. The latest data show industrial production falling while the trade deficit soars to record levels. To round off a dismal week for economic statistics, the Fed (美联储) announced that industrial production fell by 0.2% in December compared with the previous month. That came as a disappointment to economists who had been expecting a small rise. Monthly data are always unreliable, of course; there is always a plausible explanation for unexpectedly bad (or good) news. But nearly all recent economic statistics point to the same conclusion--that America’s recovery remains sluggish and erratic. It could put pressure on the Fed to consider cutting interest rates again when its policymaking committee meets at the end of the month.
The biggest obstacle to healthier economic performance, though, is political. As the Fed’s chairman, Alan Greenspan, acknowledged in the closing months of 2002, uncertainty about the
A. The sluggish economic situation
B. The direct threat of international terrorism
C. The possibility of a war with Iraq
D. Investors’ shortage of capital
Violent criminals with something to hide have more reason than ever to be paranoid about a tap on the shoulder which could send them to jail. Queensland police are working through a backlog of unsolved murders with some dramatic success. Greater cooperation between the public and various law enforcement agencies is playing a role, but new genetic-testing techniques are the real key to providing the vital evidence to mount a prosecution.
Evidence left behind at the scene of any murder is guaranteed to outlive the person who left it. A blood, saliva or tissue sample in the size of a pin, kept dry and out of sunlight, will last several thousand years. From it, scientific analysis now can tell accurately the sex of the person who left it.
When matched against a sample from a crime suspect, it can indicate with million-to-one certainty whether the samples come from the same source. Only twins share identical DNA. So precise is the technology if the biological parents o
A. the greater cooperation between suspects and police
B. the simplification of the criminal prosecution process
C. forensic scientists’ ability in positive individual identification
D. new techniques in finding footprints of’ murders
| (判断)信访工作机构根据工作需要，可以参加会市会等有关会议，阅读相关文件，查阅、复制与信访事项有关的文件、凭证。( ) |
| 在面向对象方法中，对象可看成是属性(数据)以及这些属性上的专用操作的封装体。封装是一种
(1) 技术，封装的目的是使对象的 (2) 分离。 类是一组具有相同属性和相同操作的对象的集合，类中的每个对象都是这个类的一个 (3) 。类之间共享属性和操作的机制称为 (4) 。一个对象通过发送 (5) 来请求另一对象为其服务。 |
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