【多选题】
边际报酬递减规律发生作用的前提是( )
【多选题】
1966年以前,天主教徒在星期五不许吃肉,他们便吃鱼,1966年,教皇允许教徒们在星期五吃肉,则
【判断题】
答题说明:句子没有语法错误请选择“正确”,有语法错误请选择“错误”Ruth listened to the boys story carefully and thought for a long time.
【多选题】
There is a variety of programs___________ one can see on every channel.
【判断题】
答题说明:句子没有语法错误请选择“正确”,有语法错误请选择“错误”We saw the plane to fly across the sky.
【判断题】
答题说明:句子没有语法错误请选择“正确”,有语法错误请选择“错误”When you send a letter, you have to put stamps in the envelope.
【多选题】
We were very tired and wanted to get home ____________________ .
【多选题】
He___________ to develop his ability.