常見(jiàn)例句雙語(yǔ)例句Aim To study asymmetric total synthesis of 14 nor huperzine A 2 and its inhibitory activity on acetylcholinesterase.目的（- ） 1 4 去甲基石杉?jí)A甲的郃成及其抑制乙醯膽堿酯酶活性研究。 返回 asymmetric total synthesis