This boy is Peter .He is from America.He is ten years old . His hair is yellow.Peter can play basketball. This is his school.It's very big. There are forty students in his class. Miss White is his English teacher. Peter is good at English.
下列关于锋面和天气的叙述正确的是 ( )
①冷锋过境时,一般出现晴朗天气 ②我国北方夏季的暴雨与冷锋活动有关 ③我国冬季的大风降温天气是由于冷锋南下形成的 ④暖锋过境后,气温、气压升高,天气晴朗