What kind of dog can never bite and back?_____

猜谜：What kind of dog never can bite and bark? what kind of dog never can bite and bark What kind of dog can never bite and back?_____ What kind of dog never what kind of dog never What kind of dog can never bite and barkWhat kind of dog can never bite and bark? what kind of dog would preson bite? What kind of dog never bites? iq:what kind of dog never can bite and bark?回答 what kind of dog never can bite and bark 谜底是 guess what it isWhat kind of dog doesn't bite or bark?What can't be unless broken? What kind of dog doesn't bit or bark What kind of dog doesn't bite or bark? 谜语:what kind of dog doesn't bite or bark? 猜谜 what kind of dog doesn't bite or bark what kind of dog would a person bite What kind of dog doesn't bite or bark? What kind of dog people bite?是脑筋急转弯