为什么前列腺癌对尿道的压迫影响较小?简述前列腺癌的扩散途径。

名词解释：糖尿病

家庭访视是指什么？

简述农村社区健康教育主要形式。

名词解释：生存链

护士角色的权利

简述胃溃疡的肉眼和镜下病变特点。

Directions: Translate the following paragraph into Chinese.

Cyberspace,of course. is bigger than a telephone call. It encompasses the millions of personal computers connected by modems-via the telephone system-to commercial online services, as well as the millions more with high-speed links to local area networks, office E-mail systems and the Internet. It includes the rapidly expanding wireless services: microwave towers that carry great quantities of cellular phones and data traffic; communications satellites strung like beads in the geosynchronous orbit; low-flying satellites that will soon crisscross the globe like angry bees, connecting folks too far –flung or too much on the go to be tethered by wires. Someday even our television sets may be part of cyberspace, transformed into interactive “teleputers -called full-service networks like the ones several cable-TV ” by so companies(including Time Warner)are building along the old cable lines, using fiber optics and high-speed switches.

简述哪些因素可以影响肿瘤的质地。

简述制订课程科目大纲应遵循的原则。