温度/°C
700
800
830
1000
1200
平衡常数
1.7
1.1
1.0
0.6
0.4
回答下列问题:
“天子重英豪,文章教尔曹。万般皆下品,惟有读书高。”这首诗被宋朝学子奉为金科玉律的原因是( )
依次填入下面横线处的语句,衔接最恰当的一组是()至于中国戏曲舞台上的演员与角色,他们既是“合二为一”的,又是“一分为二”的。______,________。演员的技艺刻画了角色的能耐,_________。________,________。________。艺术家所能发挥的天地是双倍的。①有时跳出角色表现自己②观众既欣赏到角色的本领,同时也欣赏到演员超凡的功力③演员有时进入角色而表现角色④演员的功夫又加强了角色的魅力⑤演员与角色,真真假假、浑然一体⑥得到双重满足
求证:sin2αtan2α=tan2α﹣sin2α
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.