and/or的区别用法On Saturday morning,ten kids did their homework or studied.Seven kids watched a movie or stayed at home and watched TV.以上两句话的OR是说明意识.AND/OR的区别是什么

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and/or的区别用法On Saturday morning,ten kids did their homework or studied.Seven kids watched a movie or stayed at home and watched TV.以上两句话的OR是说明意识.AND/OR的区别是什么
and/or的区别用法
On Saturday morning,ten kids did their homework or studied.
Seven kids watched a movie or stayed at home and watched TV.
以上两句话的OR是说明意识.AND/OR的区别是什么

and/or的区别用法On Saturday morning,ten kids did their homework or studied.Seven kids watched a movie or stayed at home and watched TV.以上两句话的OR是说明意识.AND/OR的区别是什么
and是和的意思.用于肯定表示什么和什么.
or在否定句中也表示和.如:I don't like apples or pears.意思是我苹果和梨都不喜欢.or在问句中表选择,如:Do you like apples or pears?意思是你喜欢苹果还是梨.

and有“和,及,与,同;又”,“然后”,“而且”的意思,一般用于肯定句。而or则有“或”,“或者”的意思,一般用于否定句