11. Claim 1: nucleic acid sequence, characterized by at least 11 consecutive nucleic acid numbers 3 or their auxiliary sequences, and / or at least 11 consecutive nucleic acid numbers 4 or their auxiliary sequences. Requirements 5: a method to determine the DNA amplification reaction of at least two hosts in the DNA amplification reaction with the DNA of dn9936 trans maize event in the sample; and the presence of detection amplifier,The presence of the amplifier indicates the presence of DNA from the dbn9936 transgenic maize event in the sample; the amplifier includes at least 11 consecutive nucleosides of SEQ ID No. 3 or their auxiliary sequences, Or at least 11 consecutive nuclear sequences or their auxiliary sequences of IAEA No. 4; preferably the megaphone includes a continuous 1-11 or 12-22 nuclear sequence or their auxiliary sequences of IAEA No. 1, Or sequential 1-11 or 12-22 nucleosides of SEQ No. 2 or their subsequent sequences; preferablyLoudspeaker includes SEQ ID 1 or its auxiliary sequence, SEQ ID 2 or its auxiliary sequence, SEQ ID 6 or its auxiliary sequence, or SEQ ID 7 or its auxiliary sequence. 11. Claim 11: a cell or a part of a plant, which is characterized by a series of nucleic acids, encoding Cry1Ab protein which is resistant to insects; a series of nucleic acids, encoding EPSPs protein which is resistant to glycerol herbicide; and a series of nucleic acids in specific areas, including: The nucleic acid sequence of a specific region includes SEQ No. 1,SEQ ID No.2, SEQ ID No.6 or SEQ ID No.7; it is better that corn cells or a part of corn plants contain a series of nucleic acids to encode Cry1Ab protein which is resistant to insects, A series of nucleic acids encodes the glycerine tolerant EPSPs protein and a series of nucleic acids in a specific region as SEQ ID No.3 or SEQ ID No.4; preferably,This cell or part of a corn plant consists of a nucleic acid sequence identified by SEQ No. 5. Claim 12: a method for protecting corn plants from insect