固定利率是指在（）内存贷款利率不进行调整的利率。A.一年 B.合同期 C.所有时间

  We are all busy talking about and using the Internet. But how many of us know the history of the Internet?

At first the Internet was only used by the goverment . 小题1: But in the early 1970’s , universities, hospitals and banks are allowed to use it , too . However, computers were still very expensive and the Internet was difficult to use. By the start of the 1990’s, computers became cheaper and easier to use. Scientists had also developed software that made “surfing” the Internet more convenient.

小题2:Today it is easy to use the Internet and sending e-mail is more and more popular among students. The Internet has now become one of the most important parts of people’s life.

10岁女孩，水肿2天，伴尿量减少及血尿，今诉头痛、视物不清，发病前2周有呼吸道感染史。

如果该患儿出现呼吸困难，颈静脉怒张，双肺满布湿啰音，肝大，则下列处理错误的是（）

A.严格限制水、钠摄入

B.可静脉注射作用强而迅速的利尿剂

C.烦躁不安时可给哌替啶或吗啡

D.积极使用洋地黄制剂，加强心肌收缩力

E.必要时血液透析

化学结构式 的药物是（）。

A．芬布芬

B．酮洛芬

C．布洛芬

D．萘普生

E．萘丁美酮

营养性巨幼红细胞性贫血无明显神经症状时，首选的治疗药物是

A．维生素B12
B．叶酸
C．维生素B12加叶酸
D．硫酸亚铁
E．维生素B6

广播系统具有（）检修功能。

A.停机

B.不停机

C.自检

D.免