患者，男，51岁。患风湿痹痛多年，现腰膝酸痛，痿软无力，脉沉细。用药宜首选（） A.

关于吞噬细胞，哪项不正确（）

A.包括中性粒细胞和单核巨噬细胞

B.具有模式识别受体（PRR）

C.具有调理性受体

D.均具有吞噬杀伤效应

E.均有提呈抗原功能

新斯的明药理作用为（）

A.兴奋胆碱酯酶

B.抑制胆碱酯酶

C.抑制胆碱受体

D.直接兴奋M受体

E.直接兴奋N受体

NEW YORK, May 19—A new, more destructive version of the “Love Bug ” virus is slowly spreading across the world, but so far the damage is small compared with its former version.

The new Love Bug virus creates disorder.

Richard Saunders of anti-viral firm Symantec said the virus only affected a dozen companies around the world.

“While it is a nasty virus, it’s not spreading anywhere near the rate Love But or (last year’s ) Melissa was spreading,” Saunders said.

“New Love” is similar in form to the Love Bug, which swept the world two weeks ago and caused more than $ 10 million in damages. But it’s much more destructive. The virus appears as an attachment to an e-mail whose subject begins with “FW”

If a user clicks on the attachment’s scroll-like icon（卷轴样的图标）, every file on his hard drive is destroyed.

“Basically, it’s going to destroy your machine, ” said Eric Chine, chief researcher at Symantec’s anti-virus lad in the Netherlands.

The Love Bug only killed a small set of files, including graphic files. This virus even wipes out the Windows operating system.

Attorney General Janet Reno warned the public at a news conference today to be careful of any suspicious e-mail with attachments. “Do not open it, even it comes from a trusted source.” she said.

Don’t Open That Attachments.

Like the Love Bug, after the e-mail attachment is opened and the virus is carried out, New Love sends itself to everyone in a victim’s Microsoft Outlook address book. Fortunately for users, the lesson is the same as from the Love Bug: If you see a message with an attachment whose name ends in vbs, with a scroll-like icon, don’t click on the attachment. Also like the Love Bug, this virus only affects computers running Windows 98, NT 4.0 Windows 95 with Internet Explorer 5.0 and can only spread if users rely on a Microsoft Outlook address book for e-mail. Microsoft will soon give a fix for Outlook that warns people or suspicious attachments, the company said.

68. According to the passage, so far the new Love Bug virus _________.

A. has made the whole world disordered     

B. causes more damages than other forms of virus

C. is the newest and spreading the fastest 

D. has affected 12 companies around the world

69. Computer users are warned in this article _________.

A. not to suspect e-mails beginning with “FW” subjects

B. not to open attachment of doubtful e-mails

C. to stop using Microsoft Outlook address book

D. to examine the Windows Operating System carefully

70. It can be suggested from the passage that _________.

A. the mail sent by a friend is surely free of the virus 

B. the Microsoft Company will take action against the virus

C. all computers running Windows 98 will be affected

D. the users can not find the way to deal with the Love Bug.

71. The author writes this passage in order to _________.

A. compare some types of virus                        

B. explain how the Love Bug is formed

C. tell the readers something about a new virus   

D. remind computer companies to kill the virus

材料：鸦片战争一声炮响，改变了古老中国的历史命运，西方列强的坚船利炮把中国推向灾难的深渊。面对苦难的中国，先贤们不懈斗争、上下求索，经历了从“师夷长技”到“实业救国”、变法维新的探索，人们发现温和的改良无法从根本上改变中国落后挨打的现实，必须彻底埋葬旧制度。于是，人们举起义旗，发动革命，推翻旧王朝，建立了亚洲第一个共和国。接着，又请来德、赛两位先生，挥动科学、民主大旗，吹响了思想解放的号角……。请回答：

“亚洲第一个共和国”指什么？

船舶制冷装置长时间工作，温度仍达不到要求，下面分析不正确的是（）。

A.制冷量不足

B.冷库隔热性能差

C.内部泄漏严重

D.滑油压力低