Attainment target includes eight levels and one super level.
课程目标包括八个水平和一个超水平。
The bell current source is objectively evaluated. Finally improvement conception and expected attainment target are proposed.
并对该铃流源做了较客观的估价，提出了改进设想和予期达到的目标。
The bell current source is objectively evaluated. Finally improvement conception and expected attainment target are proposed.
并对该铃流源做了较客观的估价，提出了改进设想和予期达到的目标。
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