Human facial expressions differ_____from those of animals in the degree to which they can be controlled

and modified.[ ]

 A. sufficiently    

B. deliberately      

C. normally        

D. absolutely

防水涂料施工，胎体增强材料的选用应与涂料性质相匹配。选用时，如酸碱值(pH值)大于7的碱性涂料，则应选用无碱的玻璃纤维产品。( )