碱是电解质电离时所生成的阴离子含有氢氧根离子的化合物。

题型:判断题

问题:

碱是电解质电离时所生成的阴离子含有氢氧根离子的化合物。

考点:电力机车电工考试中级机车电工中级机车电工题库
题型:判断题

验证热压灭菌法可靠性的参数是( )

A.F值

B.F0

C.D值

D.Z值

E.K值

题型:判断题

患儿,男,3岁。超声显示肝脏增大,形态失常,右叶可见一14cm×16cm大小的实性强回声团块,边界清楚,内回声不均匀,内可见强光团,后伴声影,最可能的诊断是()。

A.畸胎瘤

B.肝母细胞瘤

C.错构瘤

D.肝内血肿

E.肝肉瘤

题型:判断题
完形填空
     Towards the end of the baseball game, a controversial call was given. At full speed Paul Harvey slid
home (本垒)and, thinking he had just ___1___ a game-changing run, he stood up only to face the
words, "You're ___2___!"
     Angry, he threw off his helmet and ran over to explain to the ___3___ why the call was wrong.
Before his ___4___ really got out of control, someone pulled him away, and he walked to the bench—
___5___.   
     Long after the coaches, players, and fans had gone home, he realized the impact of his ___6___.
Like most of us do when we are faced with the __7___ of our actions, he could have just let it go,
reasoning, "Everybody ___8___ it."
     However, in the silence of his heart, he knew that just ___9___ everyone else does it, that doesn't
make it all right. And so, long after his friends had gone home, he ___10___ that coach back up to the
school-not to ___11___ his car. No, the boy tracked this man down so he could tell him face to face,
"I'm sorry, Sir. It was all my___12___."
     It takes true courage to stand up to face the ___13___ we all make and say, "I was wrong. I'm
sorry." What makes this ___14___ unique is that it wasn't meant for the world to ___15___, it was
meant simply as a way to stay ___16___ to his own heart.
     The truth is at one time or another we have all been this boy —___17___ out in anger, saying hurtful
things, and feeling ___18___ for doing so. But the real test comes later when we are ___19___ with the
choice to say "sorry" or to walk away thinking, "Ah, they'll get over it."
     Maybe the "they" is a customer, a friend, or a child. Whoever it is, don't pass up the opportunity to
get right with your own heart. The time for apology is now! Courage is a ___20___ of the heart.
( )1. A. broken      
( )2. A. down        
( )3. A. judge      
( )4. A. temper      
( )5. A. peaceful    
( )6. A. explanation
( )7. A. satisfaction
( )8. A. does        
( )9. A. until      
( )10. A. accompanied
( )11.  A. repair    
( )12. A. fault    
( )13. A. promise   
( )14. A. situation
( )15. A. praise    
( )16. A. true      
( )17. A. setting  
( )18. A. regretful
( )19. A. offered  
( )20. A. matter      
B. scored    
B. in        
B. fan        
B. strength  
B. pale      
B. argument  
B. guilt      
B. hates      
B. because    
B. sent      
B. clean      
B. rudeness  
B. impoliteness
B. excuse     
B. remember  
B. still      
B. acting    
B. brave      
B. awarded    
B. description  
C. hit        
C. off        
C. coach      
C. mood        
C. hopeful    
C. performance
C. embarrassment
C. likes      
C. when        
C. brought    
C. destroy    
C. mistake    
C. effort      
C. announcement
C. hear        
C. calm        
C. looking    
C. nervous    
C. presented  
C. bottom      
D. completed    
D. out          
D. player        
D. spirit        
D. disappointed  
D. behavior      
D. pride        
D. receives      
D. if            
D. tracked      
D. drive        
D. carelessness  
D. attempt      
D. apology      
D. see          
D. sensitive    
D. holding      
D. right        
D. charged      
D. expression    
题型:判断题

不是细菌侵袭性酶的是

A.血浆凝固酶

B.透明质酸酶

C.链激酶(S

D.链道酶(S

E.溶菌酶

题型:判断题

喷射除锈前若钢材表面有较多的油脂,需先进行()处理。

A.除锈

B.除油

C.清洗

D.加热

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