a variety of与various of的区别是什么?

a variety of与various of的区别是什么?如上～ a variety of与various of的区别是什么? various 与 variety一题如下：sound can be produced from __ string instruments.A various ofB variety ofC a various ofD a variety of选什么和为什么 thanks还有其余的为什么不对 variety of skills还是 various of skills? all variety of与a variety of有区别吗 various kinds of和a variety of后面加[c]?[u]? I think cooking style __(因国家的不同而不同) （用a variety of/varieties of/the variety of/various/vary Foreign visitors are impressed by the___ of Chinese food.A.various B.variation C.variety D.variable选择什么?为什么? Various和Variety的区别和使用方法There are various ways of solving the problem.We would like to see a great variety of dishes on the menu.A variety of other drying places was devised.为什么最后2句一个是复数一个是单数?这句The a great variety of是什么意思 a variety of 和the variety of 的区别? the variety of和a variety of一样吗?为什么 the variety of,a variety of 的区别? 英语翻译A Modified E-Commerce Model with New ConstructsAbstractThe purpose of this study is first to investigate a variety of effects in terms of various aspects of the DeLone & McLean constructed e-commerce model (DMECM),and then to introduce a integration of a variety of resources是什么意思? various of与various怎么个区别啊? The new advertisement of McDonald's boasted a/an ___ variety of choices.A.various B.vast C.many D.ethnic请写明原因为什么其他不能选谢谢 “a variety of”的中文意思是?