手游最前线:what kind of后加dumplings 还是dumpling?

what kind of后加dumplings 还是dumpling? a kind of 后加单数吗? what kind of 与which kind of 有何区别 what kind of dog has no tail What letter is a kind of drink? what letter is a kind of drink A cabbie drives what kind of vehicle? What kind of MP3 should I buy What kind of hand cannot hold anything ? What kind of hand cannot hold anyting?