下图所示为蒋介石的一封信件,于国民政府军委会战时新闻检查局档案。由此可见,当时
A:蒋介石反对抗日民族统一战线
B:蒋介石主张攘外必先安内政策
C:国共第二次合作破裂,内战开始
D:国共两党既相互合作又舆论斗争
一个平行四边形花圃,底35米,高26米.如果每平方米能培植鲜花20枝,这个花圃一共可培植鲜花____枝
It's Sunday today. Sam and his friends are washing(洗)a car for Mr. Green. They can give the money from the car washing to their school football team. Mary and her friends are seeing a funny movie. They see an interesting cat in the movie. Ann is in the park with her mother. They're talking under a big tree. I think they are having a good time. Joan wants to know what her friend is doing. Her friend is in Japan, so Joan is writing a letter to her friend on her computer. May is cleaning the house with her parents. The family are very busy, but they're very happy. They are working and singing.