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單項(xiàng)選擇題

十二指腸鉤蟲(chóng)口囊的結(jié)構(gòu)特征之一()

A．鉤齒1對(duì)
B．鉤齒2對(duì)
C．板齒1對(duì)
D．板齒2對(duì)
E．鉤齒3對(duì)

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單項(xiàng)選擇題

蛔蟲(chóng)幼蟲(chóng)可以致病，宿主受損傷最明顯的部位是()

A．腦
B．肺
C．小腸
D．大腸
E．肝臟

單項(xiàng)選擇題

下列哪種蟲(chóng)卵最大()

A．蛔蟲(chóng)卵
B．鉤蟲(chóng)卵
C．姜片蟲(chóng)卵
D．肝吸蟲(chóng)卵
E．肺吸蟲(chóng)卵

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