气胸的体征为（）。 A.胸廓对称，患侧呼吸运动减弱，语颤增强 B.患侧胸廓塌陷，呼吸

下列哪一项操作需要洁净度为100级的环境条件

A．大于50ml注射剂的灌封

B．注射剂的稀配、滤过

C．小容量注射剂的灌封

D．供角膜创伤或手术用滴眼剂的配制或灌装

E．灌装前需除菌滤过的药液配制

结核分支杆菌用（）

A.镀银染色

B.芽孢染色

C.抗酸染色

D.墨汁负染色

E.异染颗粒染色

第二节、完形填空（本题共20小题，每题1分，满分20分）

阅读下面短文，从短文后所给各题的A、B、C和D四个选项中，选出可以填入空白处的最佳选项。

Mr. West wanted to buy his wife a Christmas present, but he was always very   21   , so he was never able to find time to go to the shops. At last, when it was the week   22   Christmas, and the shops were very crowded, he decided that he could not   23  any longer. He worked in an office, and usually  24  lunch in a restaurant, but one day he bought some sandwiches, ate 25  quickly and went out to a big shop near his  26 during his lunch hour.

The shop was full of women, who were also buying   27   during their lunch hour. Mr. West stood   28   at the edge of a crowd of 29  who were pushing forward to try to get to the people who were  30   necklaces and earrings. He tried to move forwards slowly, taking his turn with the others, but more and more women were 31 into the shop the whole time and pushing selfishly (自私地) 32  him. After half an hour, he was just as 33    from the people who were selling the necklaces as he had been when he came in, and his lunch hour was coming to 34   , so he decided to change his 35   of doing things: he put his head down, gave a sudden loud shout and started to  36  his way towards the 37     of the crowd as hard as he could.

The women around him became very 38   when they saw what he was doing, and began to scold (责备) him. “Why can’t you behave (做事) like a  39  ?”, they shouted.

“Ladies,” he answered them, “I have been behaving like a gentleman for the past half hour, and it has got me   40  , so now I am starting to behave like a lady!”

(   )21. A. lazy            B. unwilling           C. busy              D. forgetful

(   )22. A. before         B. around           C. behind             D. after

(   )23. A. work           B. stay                C. wait               D. think

(   )24. A．had             B．have               C．eat                           D．took

(   )25. A. it                B. them               C. that                            D. those

(   )26. A. car                 B. house              C. restaurant          D. office 

(   )27. A. presents        B. sandwiches          C. clothes            D. food           

(   )28. A. alone           B. quietly             C. politely            D. freely

(   )29. A. women          B. children            C. men              D. strangers

(  )30. A. examining     B. selling              C. choosing           D. buying

(   )31. A. going              B. entering            C. coming            D. running

(   )32. A. behind             B. past              C. over             D. against

(   )33. A. near          B. up                C. far               D. out

(   )34. A. a top           B. an end              C. measure           D. the limit

(   )35. A. idea            B. measure            C. way              D. plan

(   )36. A. step            B. push               C. go               D. pull

(   )37. A. front           B. edge               C. center            D. back

(   )38. A. surprised        B. afraid              C. angry             D. nervous

(   )39. A. gentleman           B. lady              C. woman                 D. man

(   )40. A. anywhere        B. nowhere            C. somewhere        D. everywhere

阅读材料，回答问题。

1863年元月一日起，凡在当地人民尚在反抗合众国的任何一州之内或一州的指明地区之内，为人占有而做奴隶的人们都应在那时及以后永远获得自由；合众国政府行政部门，包括海陆军当局将承认并保障这些人的自由。

请回答：

（1）上述材料选自美国内战中颁布的某部文献，请写出这部文献的名称。

（2）这部文献颁布时战争形势如何？

（3）这部文献颁布后战争形势出现了怎样的变化？

（4）请你用一句话概括上述材料的主要内容。

SF₆气体湿度检测时，SF₆气体可以从（）处取样。

A.防爆膜

B.密度继电器

C.气体压力释放阀

D.密度监视器