某个配置项的版本由1.11变为1.12,按照配置版本号规则表明______。 A.目

题型:单项选择题

问题:

某个配置项的版本由1.11变为1.12,按照配置版本号规则表明______。

A.目前配置项处于正在修改状态,配置项版本升级幅度较大

B.目前配置项处于正在修改状态,配置项版本升级幅度较小

C.目前配置项处于正式发布状态,配置项版本升级幅度较小

D.目前配置项处于正式发布状态,配置项版本升级幅度较大

考点:计算机软件水平考试高级信息系统项目管理师高级信息系统项目管理师2010上半年上午试题
题型:单项选择题

氮元素的化合物在工农业以及国防科技中用途广泛,但也会对环境造成污染,如地下水中硝酸盐造成的氮污染已成为一个世界性的环境问题。

完成下列填空:

(1)某课题组模拟地下水脱氮过程,利用Fe粉和KNO3(aq)反应探究脱氮原理。实验前

①用0.1mol·L-1H2SO4(aq)洗涤Fe粉,其目的是                        ,然后用蒸馏水洗涤至中性;

②将KNO3(aq)的pH调至2.5;

③为防止空气中的        (写化学式)对脱氮的影响,应向KNO3溶液中通入N2

(2)用足量Fe粉还原上述KNO3(aq)过程中,反应物与生成物的离子浓度、pH随时间的变化关系如图所示。请根据图中信息写出t1时刻前该反应的离子方程式:                                   

(3)神舟载人飞船的火箭推进器中常用肼(N2H4)作燃料。NH3与NaClO反应可得到肼(N2H4),该反应中被氧化与被还原的元素的原子个数之比为                。如果反应中有5mol电子发生转移,可得到肼         g。

(4)常温下向25mL 0.01mol/L稀盐酸中缓缓通入5.6 mL NH3(标准状况,溶液体积变化忽略不计),反应后溶液中离子浓度由大到小的顺序是                     。在通入NH3的过程中溶液的导电能力            (填写“变大”、“变小”或“几乎不变”)。

(5)向上述溶液中继续通入NH3,该过程中离子浓度大小关系可能正确的是      (选填编号)。

a.c(Cl-)=c(NH4+)>c(H+)=c(OH-)       b.c(Cl-)>c(NH4+)=c(H+)>c(OH-)

c.c(NH4+)>c(OH-)>c(Cl-)>c(H+)     d.c(OH-)>c(NH4+)>c(H+)>c(Cl-)

(6)常温下向25mL含HCl 0.01mol的溶液中滴加氨水至过量,该过程中水的电离平衡                                 (填写电离平衡移动情况)。当滴加氨水到25mL时,测得溶液中水的电离度最大,则氨水的浓度为                  mol·L-1

题型:单项选择题

蓄电池浮充电压过高、过低都不好。

题型:单项选择题

The number of people who________ killed in the earthquake ______4000.

A.was; were

B.were; was

C.were; were

D.was; was

题型:单项选择题
完形填空
     Several years ago, while attending a communication course, I experienced a most unusual process. The
instructor asked us to list   1   in our past that we felt   2   of, regretted, or incomplete about and read our
lists aloud.
     This seemed like a very   3   process, but there's always some   4   soul in the crowd who will volunteer. The instructor then   5   that we find ways to   6   people, or take some action to right any wrong doings. I
was seriously wondering how this could ever   7   my communication.
     Then the man next to me raised his hand and volunteered this story: "Making my   8  , I remembered an
incident from high school. I grew up in a small town. There was a Sheriff   9   of us kids liked. One night, my two buddies and I decided to play a   10   on him.
     After drinking a few beers, we climbed the tall water tank in the middle of the town, and wrote on the
tank in bright red paint: Sheriff Brown is a s.o.b.(畜生). The next day, almost the whole town saw our
glorious   11  . Within two hours, Sheriff Brown had us in his office. My friends told the truth but I lied. No
one   12   found out."
     "Nearly 20 years later, Sheriff Brown's name   13   on my list. I didn't even know if he was still   14  .
Last weekend, I dialed the information in my hometown and found there was a Roger Brown still listed. I
tried his number. After a few   15  , I heard, "Hello?" I said, "Sheriff Brown?" Paused. "Yes." "Well, this is
Jimmy Calkins."
     "And I want you to know that I did it!" Paused. "I knew it!" he yelled back. We had a good laugh and a   16   discussion. His closing words were: "Jimmy, I always felt bad for you   17   your buddies got it off
their chest, but you were carrying it   18   all these years. I want to thank you for calling me...for your sake."
Jimmy inspired me to   19   all 101 items on my list within two years, and I always remember what I learned from the course: It's never too late to   20   the past wrongdoings.
( )1. A. something
( )2. A. ashamed  
( )3. A. private  
( )4. A. foolish  
( )5. A. expected  
( )6. A. connect with
( )7. A. improve  
( )8. A. notes    
( )9. A. any    
( )10. A. part    
( )11. A. view    
( )12. A. also    
( )13. A. appears  
( )14. A. angry    
( )15. A. words    
( )16. A. cold    
( )17. A. in case  
( )18. A. around  
( )19. A. build up
( )20. A. regret
B. anything  
B. afraid    
B. secret    
B. polite    
B. suggested
B. depend on
B. continue  
B. list      
B. most      
B. game      
B. sign      
B. even      
B. considers
B. happy    
B. rings    
B. plain    
B. so long as
B. out      
B. make up  
B. forgive
C. somebody    
C. sure        
C. interesting
C. simple
C. ordered    
C. apologize to  
C. realize    
C. plan        
C. none        
C. trick      
C. attention  
C. still      
C. presents    
C. doubtful    
C. repeats    
C. nervous    
C. unless      
C. on          
C. clear up    
C. right    
D. anybody      
D. proud        
D. funny        
D. brave        
D. demanded      
D. get along with
D. keep          
D. stories      
D. all          
D. record        
D. remark        
D. ever          
D. remembers    
D. alive        
D. calls        
D. lively        
D. because      
D. away          
D. give up      
D. punish        
题型:单项选择题

有一组物质:①NaOH、②H2O、③MgBr2 、④CO2、⑤H2、⑥N2、⑦Na2O2、 ⑧H2O2、⑨NH4Cl、⑩SO

(1) 离子化合物有___________ 共价化合物有________________ ,既含有离子键又含有共价键的物质有_________________            

(2)写出下列物质的电子式:

H2O____________ MgBr2_____________ CO2___________ Na2O2____________________

更多题库