两种英文句型的区别Chinese:产品放入静电袋与礼盒中方向是否有定义English1:Has the orientation of loading PCBA into static bag and box been defined?English2:Is the orientation of loading PCBA into static bag and box be defined?
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两种英文句型的区别Chinese:产品放入静电袋与礼盒中方向是否有定义English1:Has the orientation of loading PCBA into static bag and box been defined?English2:Is the orientation of loading PCBA into static bag and box be defined?
两种英文句型的区别
Chinese:产品放入静电袋与礼盒中方向是否有定义
English1:Has the orientation of loading PCBA into static bag and box been defined?
English2:Is the orientation of loading PCBA into static bag and box be defined?
请问两种句型是否有区别,还是说都是一样的?
两种英文句型的区别Chinese:产品放入静电袋与礼盒中方向是否有定义English1:Has the orientation of loading PCBA into static bag and box been defined?English2:Is the orientation of loading PCBA into static bag and box be defined?
1、完成时态的疑问句,重点在has,对曾经是否定义这种行为不清楚
2、一般问句,重点在defined,对现在是否定义的状态不清楚
时态不同,一句强调已经完成
一种是现在完成时,说是过去到现在是否有定义。
第二种是一般现在时,说是现在是否有定义,不包含过去。