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FR~Ⅰ型 FR~Ⅱ型 FR~Ⅲ型 FR~Ⅳ型 FR~Ⅴ型
FR1—FR64 FR1—FR70 FR1—FR77 FR1—FR87
learn learn have learned had learned
promoted included secured awarded
FR1为4A,FR2为4.5A,FR4、FR5为4A FR1为4.5A,FR2为5A,FR4、FR5为4A FR1为4A,FR2为4.5A,FR4、FR5为5A FR1为4A,FR2为4.5A,FR4、FR5为4.5A
serve have served had served served
dropping pulling letting leaving
serve served have served had served
Good luck What a pity Have a good time Well done
has done have done do had done
promoted included secured awarded
serve have served had served served
as well; has been and; have as well as;was as good as; were
11Im1-3Im2= 5 11Im1+3Im2=5 11Im1+3Im2=-5 11Im1-3Im2=-5