1　观察涡虫吻的好方法在涡虫实验中 ,用食物诱导及人工刺激等方法观察涡虫吻 ,操作和观察都较困难 ,成功率不高。如改用下法 ,效果较好。取 1条三角真涡虫 ,置于载玻片上 ,加 1小滴蒸馏水 ,待其身体完全伸展时 ,再加 1滴医用盐酸普鲁卡因 ,然后 ,在实体显微镜下观察。此时 ,可 A good way to observe the venomous kiss In the venom experiment, with food-induced and artificial stimulation method to observe venom kisses, the operation and observation are more difficult, the success rate is not high. If the switch to the next method, the effect is better. Take a Triangle planarian, placed on a glass slide, add a small drop of distilled water until the body is fully stretched, plus 1 drop of medical procaine hydrochloride, and then observed under a solid microscope. At this point, yes