Welcome to the Debatetop！
Save to desktop
Post opinions
opinions
User
Topics
Classification
Economy
Marketing
Finance
Business
E-commerce
Politics
Ideology
law
President
Left&Right
Life
Law
work
health
Emotions
Movies
Manual
Mother & Baby
Experience
celebrity
science
Politics
Actor
Writer
Psychology
Basics
Application
Philosophy
Logic
Epistemology
Science
Computer
Program
Biology
Chemistry
Physics
Medicine
Internal Medicine
Surgery
Gynecology
Peds
Dermatology
Otolaryngology
Ophthalmology
Oncology
Contagion
Psychiatry
Ideology
communism
Cruel
World
Relationship
Event
Area
Home
Economy
Politics
Life
celebrity
Psychology
Philosophy
Science
Medicine
Ideology
World
Location：
Debatetop
>
Science
>
Chemistry
The origin of nylon
21-08-11
The origin of nylon
author：yangguang reading：0 brief：<div class="para" style="font-size: 14px; overflow-wrap: break-word; color: rgb(51, 51, 51); margin-
