求翻译：根据上面所提到的语用预设连贯性的理论，先让学生在课堂的规定时间内完成以上的三道习题，然后在经过同桌之间的交换互改是什么意思？

Mentioned above, the language with the default coherence theory, let the students in the classroom within the specified time above three exercises, and then after at the same table between the exchange interaction change

According to the above mentioned words preset consistency of theory, let the students in the classroom within the time specified above complete the 3 exercises, and then after the table read the exchange between Internet

The language mentioned which according to above with supposes the continuous in advance theory, lets the student complete above three exercises first in the classroom scheduled time between, then shares a table the exchange in the process to change mutually

According to the above mentioned theory of pragmatic presupposition of coherence, was completed within a specified time by students in the classroom more than three exercises, modified by exchange between and after a neighbor each other

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