I don't know who invented the machine,but I think it is a/the useful invention.a还是the?
来源:学生作业帮助网 编辑:作业帮 时间:2024/05/30 07:56:50
I don't know who invented the machine,but I think it is a/the useful invention.a还是the?
a 意为“一种”,表示泛指.
a
a
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来源:学生作业帮助网 编辑:作业帮 时间:2024/05/30 07:56:50
I don't know who invented the machine,but I think it is a/the useful invention.a还是the?
a 意为“一种”,表示泛指.
a
a