教师在教学中如何贯彻启发性原则?
参考答案:
⑴调动学生学习的主动性;
⑵启发学生积极思考;
⑶要让学生理解学习过程,掌握学习方法;
⑷要建立良好的师生关系。
With the development of science, more new technology ________ to the fields of IT. [ ]
A. has introduced
B. is being introduced
C. is introduced
D. was introduced
对于使用寿命不确定的无形资产,其摊销期不得低于()。