简述中国美术的发展及特点。
Which of the following features is involved in good textbooks?
肌肉收缩时张力改变而长度不变的收缩形式为()。
During class, the teacher leads students to memorize the important points of the teaching content. On one hand, the teacher helps students to grasp the key points. On the other hand, what learning strategy is the teacher teaching?
快肌的生理特点是()。
Which of the following belongs to the communicative approach?
氧气运输的主要载体是()。
The situational approach is a situation-based language teaching method which focuses on _______.
体循环的血液是由()泵入主动脉的。
交际法的特点是什么?