问题 多项选择题

在采取不均匀的试样时,下述有关决定采样数量的因素中()是不对的。

A.物料粒度

B.粉碎试样的难度

C.粉碎试样中存在的杂质

D.物料的不均匀性

E.试样中组分含量与整批物料中组分平均含量间所允许的误差

F.物料的相对密度

(G)物料中的相对溶解度

答案

参考答案:F, G

完形填空
完形填空。
     Jimmy is a black and white dog. We all like   1   very much. He is a member of our   2  . Jimmy is one
and a half years old. He usually    3   at about 7: 00 a.m. And at 7: 30 he eats his   4     . He usually has
bones (骨头). Sometimes he has    5   . After that he goes out and brings    6    for us to drink. At about
9: 00 he goes out to meet   7   , a brown dog next door. He comes back at about 11: 30 a.m. for his lunch
and sleeps three hours. At about 3: 30 p.m. he    8   and brings us the evening newspaper. Then I walk him
in the park. We often play Frisbee (飞碟) together there. At about 6: 00 p.m, he   9   his meal. Every day
at 7: 00 in the    10    he and I sit together on the sofa to watch TV. Then he sleeps.
( )1. A. he            
( )2. A. family        
( )3. A. goes to work  
( )4. A. lunch        
( )5. A. meat          
( )6. A. kilos of bones
( )7. A. his friend    
( )8. A. goes to sleep
( )9. A. eats          
( )10. A. bedroom      
B. him          
B. class        
B. goes home    
B. supper      
B. vegetables  
B. bags of milk
B. his family  
B. goes out    
B. drinks      
B. dinning room
C. his          
C. club          
C. gets up      
C. breakfast    
C. noodles      
C. bowls of rice
C. his classmate
C. comes in      
C. cooks        
C. sitting room  
D. her            
D. team          
D. goes to bed    
D. dinner        
D. water          
D. packets of salt
D. his teacher    
D. comes out      
D. makes          
D. kitchen        
单项选择题 A1型题