填上合适的词语。
一( )奶 一( )黑影 一( )眼睛
一( )事 一( )机器 一( )种子
瓶 个 双 件 台 粒
The schema theory is an important element in ______, which is action-based, more concerned with the process of learning than what is learnt.
A. Brunner's theory B. Ausubel's theoryC. Kelly's theory D. Piaget's theory
非水滴定法测定维生素B1原料药的含量,应选( )。
A.淀粉指示剂B.喹哪啶红-亚甲蓝混合指示剂C.二苯胺指示剂D.邻二氮菲指示剂E.酚酞指示剂