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Comparison on the Effectiveness of Different Types of Teacher Feedback on Correcting Oral Production
This paper is mainly about the comparison on effectiveness of three types of corrective feedback: explicit Correction, r......
亲环蛋白(cyclophilin)基因广泛地存在于动植物中.在植物中,该基因受许多非生物(abiotic)因子和化合物的调节.利用RT-PCR的方法克......
