The adless publication is painted either as a disservice to the public, or as an economic impossibility . 无广告的出版物被说成是对公众不利的，或者说在经济上是不可能的。
2.
The entire halcs gene is located on a megaplasmid and contains a 849 - bp open reading frame that encodes a polypeptide of 283 amino acids . the promoter is typically haloarchaeal , but the start site of transcription is only seven bases from the 5 ' end of the initiator aug codon , making the halcs transcript another example of a " leadless transcript " in the haloarchaea 它的一29一24位置上是一“毛幻人” box序列，为典型的嗜盐古菌启动子;它的转录起始位点距离“ atg ”只有7个核普酸，也是典型的嗜盐古菌的“卜adless腼script ’ ’ 。
