新充好的电池,放置时间不长,容量就下降很多或充电时比正常电池时间要长,放电时端电压下

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新充好的电池,放置时间不长,容量就下降很多或充电时比正常电池时间要长,放电时端电压下降很快,可能原因就是()。

A.极板短路

B.自放电过大

C.极板弯曲

D.电池反极

考点:电动装卸机械修理工电动装卸机械修理工综合练习电动装卸机械修理工综合练习题库
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完形填空。
     For your next vacation why not  1  visiting Paris? Paris is the capital of  2  and is one of  3  cities in Europe.
It doesn't have any beaches  4  mountains, but there  5  still. many things to do there. For example, it has some
fantastic sights, including the Eiffel Tower and Notre Dame Cathedral.  6  around Paris by taxi can  7  a lot of
money, but it's usually convenient  8  the underground train to most  9  In general, though, France is quite an
expensive place. One thing  10  is not expensive in France, however, is the wine.
( )1. A. consider
( )2. A. England 
( )3. A. lively  
( )4. A. and     
( )5. A. is      
( )6. A. Traveling
( )7. A. spend   
( )8. A. to take 
( )9. A. place   
( )10. A. who    
B. to consider
B. French    
B. liveliest 
B. or        
B. have      
B. Travel    
B. pay       
B. by        
B. countries 
B. that      
C. considering 
C. France      
C. the liveliest
C. with        
C. are         
C. Travels     
C. cost        
C. taking      
C. places                             
C. where       
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二十五岁初产妇,妊娠26周,但是下腹膨隆不明显,宫底高度在脐耻之间,尚未自觉有胎动。否认腹痛病史,否认 * * 流血史。

本例首先考虑的诊断为()

A.死胎

B.胎儿窘迫

C.胎儿生长受限

D.胎儿畸形

E.羊水过少

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一个数的最小倍数减去它的最大因数,差是______.

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实现热装热送的前提是要求连铸坯的无()。

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胎儿宫内死亡几周以上发生凝血功能障碍的几率明显增大:

A.1~2周

B.2~3周

C.3~4周

D.5~6周

E.1周以内

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