Some basic problems in research of current teaching mode are puzzling.
当前教学模式研究中某些基本问题令人困惑。
In these deputing problems, the traffic source model theory is a current research hot-point.
在这些问题中，有关业务源模型的理论是当前研究的焦点之一。
Meanwhile, some current problems in the research field and the further research direction are discussed.
同时还讨论了目前研究存在问题及未来研究的方向。
Meanwhile, some current problems in the research field and the further research direction are discussed.
同时还讨论了目前研究存在问题及未来研究的方向。
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