In his first class, the Chinese teacher tried to ________ to the students that reading is one of life's greatest pleasures.
填一填。
①酒逢知己千杯少，____。 ②老乡见老乡，____。
③读书破万卷，____。
下列有关蚯蚓的叙述，错误的是（ ）
满足
则
的最小值是（ ）
