A:a worse day
B:a nicer day
C:such bad a day
D:so fine a day
①参加学校组织的各种公益活动 ②使用互联网,交益友,不交损友
③参加国际学生交流活动 ④广交同龄的各种人,发展成朋友
Good morning. This is the world weather report. It's warm in Beijing today. Children can play football outside. It's cold in New York. And it's snowy. Children can make a snowman. It's cool in Toronto. Children can fly a kite. It's hot in Sydney. Children can swim in the sea.
City(城市)
Weather(天气)
What to do (做什么)
Beijing
____
New York
Toronto
Sydney
解方程组:x+2y=33x-y=2
关于珠江三角洲外向型经济的叙述,正确的是( )