A:大前提错误
B:小前提错误
C:推理形式错误
D:大前提与推理形式都错误
若a+b<0,ab<0,则( )
如图所示的血管,表示动脉的是( )
根据表格内容,选择正确答案。
(a)This is Mariah Carey. She is a singer. She was born in 1970. Her birthday is March twenty-seventh. She likes singing.
(b)This is Lee Young Ah. She was born in 1971. Her birthday is January thirty-first. She is a great(著名的)movie star. She likes acting.
(c)She is ZhangYining. She's a sports star. She was born in Beijing in 1981. Her birthday is October fifth. She likes singing.
(d)Do you know Bill Gates?He was born in 1955. His birthday is October twenty-eighth. He likes playing golf (高尔夫球).
(e)This is Li Lianjie. He was born in Beijing in 1963. His birthday is April twenty-sixth. He is a great actor. He likes reading.
____个正方形
____个长方形
____个圆。
____平行四边形
“它结束了曾对20世纪的人类社会产生深刻影响的一种发展模式的实践,也结束了曾在战后45年间主导国际政治的两极格局。”材料中的“它”指的是( )