"a series of"后 +可数还是不可数啊

a series of后 +可数还是不可数啊 a series of后是不是可以跟可数复数名词,也可以跟不可数名词?a series of development a series of books 是a series of factors还是a series of reasons A series of contests 后接are 还是is答案上是are,但A series of不是整体吗 这个词组修饰可数名词还是不可数名词?词组是a series of好像是一系列的意思~是都能修饰还是只修饰可数还是只修饰不可数? a number of后加可数名词复数还是单数 a kind of 后加可数还是不可数名词 a bit of后加可数名词还是不可数名词 a large amount of 后接可数还是不可数? a lot of后接可数名词还是不可数名词 a couple of 后接可数名词还是不可数名词? a world of后加可数还是不可数名词 a world of 后加可数还是不可数名词 a lot of后加可数名词还是不可数名词 lots of 后加可数名词还是不可数名词 a series of mass of后接可数还是不可数? a little of与a bit of后加可数名词还是不可数名词 英语this pulishing house is designing 空school textbooks填of a series of 还是a new series of ,为什么