关于限定日剂量，哪项是错误的A．它本身是一种用药剂量 B．它只是一种技术性的测量单位

以下对脑血栓形成的描述不正确的有哪些（ ）

A．活动中发病较多

B．发病年龄多在60岁以上

C．脑脊液无色透明

D．颅内压增高明显

E．因其起病速度较快，放多数病人意识障碍较重

下列结构及生理活动中与植物的蒸腾作用有关的是：（）。

A.叶面的大小

B.气孔的开闭

C.叶面上每单位面积含有气孔数目的多少

D.保卫细胞的膨压

E.根部从土壤中吸收水分的多少

In promising to fuse media as diverse as television, telephone communication, video games, music and data transmission, the era of digital convergence goes better than yesterday’s celebrated "information superhighway". Yet achieving this single technology is far from straightforward. There are currently three major television broadcast standards, and they are all incompatible with each other. But this is nothing compared to the many technologies supporting the Internet, each with a different bandwidth and physical media. The problems faced in designing platforms and communication systems that will be accepted across the world can appear insuperable.
Even once global standards are assured, however, a further obstacle lies in wait. The Internet is plagued by long, erratic response times because it is a pull-technology, driven by patterns of user demands. Push technology, on the other hand, reverses the relationship: servers simply send information to passive users, as in television and radio. But if some form of combination between one-way television flow and interactive Internet is to be the basis of our future media, it is hard to see how it could be operated. Moreover, the problem of fusing Internet with television is also one of defining the services offered. Information, entertainment and relaxation appear at first to be quite different needs. Serious doubts remain over whether consumers will be interested in having to make the sort of mental effort associated with computing while also settling down in front of a sitcom.
Besides the issue of consumer habits, infrastructure costs are set to be immense, and will have to be met by national states or the private sector before being passed on to users. Platforms do not necessarily have to be expensive. The mobile phone is a good example of how something that is technologically sophisticated can almost be given away, with its cost recovered through service charges. Users are then coerced through clever marketing to upgrade to newer phones with more features to reinforce their dependence.
Whatever the outcome, it is obvious that technology will play an increasing part in our everyday lives. Beyond technology, digital convergence embraces the services, industrial practices and social behavior that form modern society. We have in our hands the technology to construct the most sophisticated machines ever built, but if they are unusable, simply because of their operating instructions, then recent lessons have taught us they will not survive. Whatever we design must be simple, reliable and useful. Perhaps this is where artificial intelligence will come in.

By referring to the mobile phone, the author intends to show______

A. a solution to costs involved in the technology.
B. the importance of catering to customers’ needs.
C. a trick imposed on users by telephone companies.
D. the necessity of adding more features to phones.

急性乳腺炎的一般疗法有（）

A、停止哺乳

B、理疗

C、50%硫酸镁湿敷

D、切开引流

E、冷敷

什么是仪表的分辨力？什么是仪表的修正值？