艾滋病是一种严重威胁人类健康的传染病。下列属于其传播途径的有：①血液传播②与病人握手③性传播④与病人共同进餐⑤母婴传播

    Bird lovers know that a good place to go bird-watching is Guandu Nature Park. As many as 220 kinds of birds come to this park every year. Since the park offers birds lots of food to eat and places to build their nests, it has become a paradise（天堂）for birds.

    Guandu Nature Park is also a great outdoor classroom. The park's Nature Center provides guided tours to the public. During the tour, visitors can learn about the environment. So, if you want to have a fun and educational weekend, come to Guandu Nature Park. Get away from city life and head into nature.

“愚人吃盐”，讲的是从前有个愚人，到别人家做客，吃菜嫌淡而无味，主人知道后，给他加了一点盐，他吃了后便觉得味道很美。而后他想，味道好是因为有盐，加了那么一点点盐就那么好吃，多加一点岂不更好吃了吗？于是，他就大吃起来，结果是又苦又涩。从哲学方法论上讲，这个愚人的错误在于（  ）