在Internet中，计算机之间直接利用IP地址进行寻址，因而需要将用户提供的主机名

病历摘要：男性，35岁，常感到胸部隐痛，有明显颈动脉搏动感，常有头晕，拟入院确诊。查体：心率85次/分，心脏可闻及病理性杂音，脉压增大。

此患者采取下列哪种治疗最适合？（）

A.预防感染性心内膜炎

B.限制体力活动

C.降低血压

D.及早考虑换瓣手术

E.使用洋地黄增加心肌收缩力

A new study has found that it may be possible to train people to be more intelligent, increasing the brainpower they had at birth．

Until now，it has been widely assumed that the kind of mental ability that allows us to solve new problems without having any relevant previous experience—what psychologists call fluid intelligence—is innate and cannot be taught（though people can raise their grades on tests of it by practicing）．

But in the new study，researchers describe a method for improving this skill，along with experiments to prove it works．

The key, researchers found, was carefully structured training in working memory—the kind that allows memorization of a telephone number just long enough to dial it．This type of memory is closely related to fluid intelligence，so the researchers reasoned that improving it might lead to improvements in fluid intelligence．

First they measured fluid intelligence of volunteers using standard tests．Then they trained each in a complicated memory task—the child’s card game，in which they had to recall a card they saw and heard．During the course, they needed to ignore irrelevant items, monitor ongoing performance，manage two tasks at the same time and connect related items to one another in space and time．

The four groups experienced a half-hour of training daily for 8, 12, 17 and 19 days, respectively．To make sure they were not just improving their test-taking skills，the researchers compared them with control groups that took the tests without the training．

The results, published Monday in The Proceedings of the National Academy of Sciences，were striking．Improvement in the trained groups was a lot greater．Moreover，the longer they trained, the higher their scores were．All performers，from the weakest to the strongest，showed significant improvement．

“Our results show you can increase your intelligence with proper training．” said Dr Jaeggi, a co-author of the paper．“No one knows how long the gains will last after training stops,” he added, “and the experiment’s design did not allow the researchers to determine whether more training would continue to produce further gains．”

小题1:.The researchers thought the key to improving the intelligence was ______________．

A．memorizing telephone numbers

B．improving working memory

C．training in concentration

D．recalling a card小题2:.The following aspects of the training help increase intelligence EXCEPT___________．

A．ignoring irrelevant items

B．monitoring ongoing performance

C．managing two tasks at the same time

D．using previous experience小题3:.When the experiment was conducted, the researchers______________．

A．trained the four groups for the same period of time

B．only made comparisons between the four groups

C．compared the four groups with control groups

D．trained the four groups together小题4:.By writing the article，the writer intends to ______________．

A．inform the readers of a new study

B．call on people to be trained to increase intelligence

C．prove one’s born brainpower can be improved

D．tell people the improved intelligence will last forever

ADM是一个三端口设备，有三个线路口。

若DS=157DH时，某操作数的物理地址是215FAH，当DS=18DEH时，该操作数的物理地址是多少？

简述信息高科技对传媒业职业规范与准则的影响