对有毒之物,人们大多唯恐避之不及,更不用说那些剧毒的东西了。但在藏区,有一种含有剧毒的狼毒草,人们却在精心地培育和种植。原来,唐代文成公主远嫁松赞干布后,藏族人才知道了纸张。可西藏没有竹子、稻草、破渔网等造纸原料。 Most of the people who poison the poisonous food are afraid to avoid it, let alone the poisonous ones. However, in the Tibetan areas, there is a highly virulent plant that contains licorice, and people are carefully nurtured and cultivated. It turned out that after the Tang Dynasty Princess Wencheng married Songtsan Gambu, Tibetans know the paper. Tibet can not have bamboo, straw, broken fishing nets and other papermaking raw materials.