發送短信

數:

提供者:

CAPTCHA:

 _    _    __   __    ______   _    _     ______  
| |  | ||  \ \\/ //  /_   _// | || | ||  /_   _// 
| |/\| ||   \ ` //     | ||   | || | ||  `-| |,-  
|  /\  ||    | ||     _| ||   | \\_/ ||    | ||   
|_// \_||    |_||    /__//     \____//     |_||   
`-`   `-`    `-`'    `--`       `---`      `-`'

Please enter what you see:

發送短信 : The reduction of dispersed indigo by cathodically formed 1,2,4-trihydroxynaphthalene