（）在文学意义上代表了先秦散文的最高成就。

能阻断β₁、β₂和α₁受体的药物是（）

A.拉贝洛尔 

B.普萘洛尔 

C.哌唑嗪 

D.酚妥拉明 

E.美托洛尔

Melissa and LoveLetter made use of the trust that exists between friends or colleagues. Imagine receiving an (6) from a friend who asks you to open it. This is what happens with Melissa and several other similar email (7) . Upon running, such worms usually proceed to send themselves out to email addresses from the victim’s address book, previous emails, web pages (8) .

As administrators seek to block dangerous email attachments through the recognition of well-known (9) , virus writers use other extensions to circumvent such protection. Executable (.exe) files are renamed to .bat and .cmd plus a whole list of other extensions and will still run and successfully infect target users.Frequently, hackers try to penetrate networks by sending an attachment that looks like a flash movie, which, while displaying some cute animation, simultaneously runs commands in the background to steal your passwords and give the (10) access to your network.

6（）

A.attachment

B.packet

C.datagram

D.message

患者女，68岁，因“腹痛、发热、巩膜黄染3d，嗜睡、低血压7h”入院。无胸闷、气促等其他不适，无其他系统病史。诊为急性梗阻性化脓性胆管炎行急诊手术。术后血压低，心率快，转入ICU。入科查体：T39.0℃，HR125次/min，R24次/min，BP86/45mmHg；巩膜黄染，意识障碍，心、肺（－），腹胀。胸部X线片：两肺纹理增多。ECG示：窦性心动过速，ST-T改变、电轴左偏。

患者入室后急查血常规：WBC26×10⁹/L，Hb75g/L，PLT32×10⁹/L；血生化：血浆总胆红素208mmol/L，Scr341μmol/L，BUN23mmol/L。结合病史及检查结果，应该给予的处理有（）

A.选用强效广谱抗生素行抗感染治疗

B.用天然/人工胶体或晶体液持续补液直到血流动力学得到改善

C.使用低剂量多巴胺作为肾保护药

D.输注血液制品，使血红蛋白维持在100g/L以上

E.急查血气分析，了解酸碱平衡

F.使用质子泵抑制剂预防应激性溃疡导致的上消化道出血

办理政协提案要在多长时间内答复？

女性，32岁，哮喘急性发作入院。入院查体发现过度通气体征，与肺气肿十分相似，此时最好的鉴别方法是（）

A.拍摄X线胸片

B.测定RV、TLC，测定RV/TLC%

C.给支气管舒张药物，待呼吸困难缓解后再拍摄X线胸片，测定RV、TLC

D.高分辨CT

E.支气管镜检查