根据首字母提示及句意填空.

1.You can talk with others in the c          room on the  Internet .

2. Almost every child can s          the Net now .

3. If you just sit in front of the computer all the time, you    could become a computer g          .

4. Don't always j        with others.

男性，67岁。诊断肺心病3年，咳、痰、喘伴双下肢水肿加重1周，查体：双肺可闻及大量湿性啰音，心率107次／分，肝于肋缘下2横指，有触痛。白细胞及分类均高，血气分析：pH7．33PaO₂45mmHg，PCO₂75mmHg，HCO^-₃35mmol／L

根据上述结果最首要的治疗是（）

A.氧疗

B.呼吸兴奋剂

C.人工通气

D.控制感染

E.静滴利尿剂