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Notice: Undefined index: HTTPS in /www/wwwroot/mengmianren.com/wp-content/plugins/dessky-cache/dessky-cache.php on line 43 错误分析:杜仲胶大分子以聚反式聚异戊二烯为主,而三叶橡胶(天然橡胶)大分子以顺式聚异戊二烯为主,他们二者化学组成相同但结构不同 – 萌面人博客