陶行知先生提出的“接枝如接知”体现了教学的( )。
A．理论联系实际原则
B．直观性原则
C．因材施教原则
D．启发性原则
参考答案：B
I won’t tell the student the answer to the math problem until he ______ on it for more than an hour.
A．has been working
B．will have worked
C．will have been working
D．had worked
有一古代中国人，穿着棉布衣服，边吃着玉米，边欣赏盛开的向日葵，此人最早可能生活在 [ ]
A．唐朝
B．元朝
C．明朝
D．清朝
