以有意义学习和认知同化的观点为基础，奥苏贝尔提出的组织学习的原则与策略有逐渐分化原则、整合协调原则和________。
参考答案：先行组织者策略
It is difficult to ____ one twin from the other. They almost don’t ____ from each other.
A．differ, distinguish
B．distinguish, differ
C．distinguish, different
D．tell, different
辟秽驱毒饮功效与作用
