程序教学、计算机辅助教学、自我教学单元和视听教学等学习模式和方法的理论依据是 ( )

A．认知教学理论

B．行为主义教学理论

C．情感教学理论

D．结构主义教学理论

_____ you read the sentences , _____ mistakes you’ll make.

A．More carefully, fewer

B． The more carefully, the less

C．The more careful , the fewer

D．The more carefully, the fewer