One class randomly formed the experimental class receiving the grammar-assisted lexical approach, with grammar awareness-raising activities incorporated in speaking class.
其中一个班被随机定为实验班，采用语法辅助的词块法：语法意识提升活动加入了口语课堂教学活动。
Experimental evaluation of natural enemy activities in cabbage fields treated with different pest control strategies.
蔬菜田不同防治策略下天敌控害作用的实验评价。
Experimental evaluation of natural enemy activities in cabbage fields treated with different pest control strategies.
蔬菜田不同防治策略下天敌控害作用的实验评价。
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