三栏目技术属于()
A.精神分析疗法
B.行为主义疗法
C.人本主义疗法
D.认知疗法
参考答案:D
— Why can’t the boy understand what the American teacher said?
— Because he is a beginner, _______ he knows ________English.
A.and; a little
B.and; little
C.so; little
D.so; a little
海水淡化装置的真空破坏阀有何功用?