單項(xiàng)選擇題有些寄生蟲(chóng)既可營(yíng)自由生活,又可營(yíng)寄生生活,可偶被人食入,或經(jīng)傷口或經(jīng)身體其它開(kāi)口進(jìn)入人體寄生,這種寄生蟲(chóng)稱()
A.兼性寄生蟲(chóng)
B.專性寄生蟲(chóng)
C.機(jī)會(huì)寄生蟲(chóng)
D.永久性寄生蟲(chóng)
E.偶然寄生蟲(chóng)
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1.單項(xiàng)選擇題在寄生蟲(chóng)類型中,按寄生生活的時(shí)間分()
A.體內(nèi)寄生蟲(chóng)和體外寄生蟲(chóng)
B.永久性寄生蟲(chóng)和暫時(shí)性寄生蟲(chóng)
C.兼性寄生蟲(chóng)和專性寄生蟲(chóng)
D.體內(nèi)寄生蟲(chóng)和暫時(shí)性寄生蟲(chóng)
E.偶然寄生蟲(chóng)
2.單項(xiàng)選擇題寄生蟲(chóng)的幼蟲(chóng)或無(wú)性階段寄生的宿主叫()
A.final host
B.intermediate host
C.reservoir host
D.paratenic host
E.carrier