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I am an English girl. My name is Mary. I’m twelve. My dad and mom are English teachers. I have a brother(哥哥). His name is Tom and he is thirteen years old. We are in China now. We are in Beijing No. 4 Junior High School. Tom is in Class 4, Grade 7 and I am in Class 9, Grade 7. I have a dog. My dog looks strong. It has a big mouth and two big black ears. We have many(许多) Chinese friends here. They are good.
植物根部的生长素在单侧光照射下会向背光一侧运输,图示为研究单侧光的光照强度与根弯曲角度关系的实验装置和实验结果.下列有关说法错误的是( )
①构建社会主义和谐社会 ②传承中华民族优秀传统文化
③建设社会主义精神文明 ④消除家庭成员的意见和分歧
一战后“又使中国回复到几个帝国主义国家共同支配的局面”的条约是( )