They all the time appear to be very grave. Someone liken his voice to the croak of a bull-frog 蛙类总是令人觉得很严肃的样子。有人把他的声音比作牛蛙的叫声
Someone liken his voice to the croak of a bull-frog 有人把他的声音比作牛蛙的叫声
To appraise bullfrog, protect and preserve superior characters and breeding quality of its protospecies, the main external characters, reproductive capacity and growing characters of bull frog were studied. 为鉴定、保护和保存牛蛙原种优良性状,研究了牛蛙的主要外部性状、繁殖力及生长特性。
Conclusion: There are A type potassium cannel and delayed rectifier potassium cannel on bull frog ′ s saccular hair cells ′ membrane. 〔 结论:牛蛙毛细胞膜上含有A型钾通道和延迟整流性钾通道。