狠狠撸

general insecta parasitology introduction 丕賱鬲乇賷賲丕鬲賵丿丕 - trematodes trematodes parasites 2 - 胤賮賷賱賷丕鬲 鬲乇賷賲丕 lecture 6 cestoda - lecture 6 cestoda 1 genral entemology general entemology genral insecta general insecta- lec. entomology thorax - appededge of thorax - insect wings lect.6 - general entemology - abdomen appendages generral entemology - alimentary canal circulatory system respiratory system general entomology nset nervous system eneral entomology - nervous system insect excretory system