问题描述:
variety和quatity的用法区别
(1/2)a variety of .varieties of和a quatity of .quatities of接复数名词时,谓语(2/2)动词单复数的区别
(1/2)a variety of .varieties of和a quatity of .quatities of接复数名词时,谓语(2/2)动词单复数的区别
问题解答:
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