如何理解“山不厌高,海不厌深。周公吐哺,天下归心”?
这一句充分吐露了诗人的心志。“山不厌高,海不厌深”化用《管子·形解》的话,用比喻手法说明自己渴望多纳贤才。同时曹操以周公自比,是说自己也有周公那样的胸襟,一定会热切殷勤地接待贤才,使天下的人才都心悦诚服地归顺。
根据短文内容判断下列句子正误。
Dear Mum,
How are you? I had fun with my cousins last week.On Monday we went to a restaurant.We ate some delicious food.On Tuesday we went to a zoo.We saw many animals.On Wednesday we played ping-pong.On Thursday we stayed at home and watched TV.On Friday we went shopping.I bought a pair of shoes.Tomorrow I'll be back home.
Yours Ann
①消极情绪对个人会产生不良影响,因而我们要通过各种途径进行发泄
②发泄情绪要在道德和法律允许的范围内进行
③要明辨是非,对自己的行为的后果作出正确判断,对自己的行为负责
④心理冲动若解决不好,会使自己的身心受到不良影响,也会给他人带来不应有的伤害。
已知x2+y2+2x﹣6y+10=0,求x+y的值.