单项选择题

Which one is the correct developmental sequence of SLA theories (①. New perspectives on transfer and interference ②. Behaviorism and structuralism ③. Mentalist view and interlanguage studies ④. Psychology and learning theories)?

A．①②③④
B．④①②③
C．②④③①
D．④③②①

你可能感兴趣的试题

设p，q的真值为0，r，s的真值为1，则的真值为____。

答案：正确

单项选择题

地球同步轨道气象卫星每几小时对地观测一次？
A、1h
B、2h
C、0.5h
D、3h