document.write('<p>(１)肽键(２)②④⑦(３)３２脱水缩合三肽  (４) <img src=\"http://www.alatiku.com/d/file/shiti/c7297139adf30d2649f3d42b9c3d6dad.jpg\" alt=\"360截图20180802000804494.jpg\" width=\"157\" height=\"140\" /></p>');