error estimate of L2 L2估计
rate of L2 concentration L2集中速率
development of L2 oral fluency 二语口语流利性
L2 learners'use of DMs 二语者标记语使用
The first is the need for research on motivation from the perspective of L2 listening research.
第一是从L2听力研究的角度看有对动机进行研究的需要。
The second is the need for research on listening from the perspective of L2 motivation research.
第二是从L 2动机研究的角度看有对听力进行研究的需要。
Bone mineral density (BMD) of L2-4 and upper end of femur was assayed with X-Ray absorptiometry.
骨密度测定应用双能X射线骨密度测量仪,测量l2 ~ 4和股骨上端的骨密度。
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