The crab can serve as the second intermediate host is ( ) A: Fasciolopsis buski B: Clonorchis sinensis C: Giardia lamblia D: Schistosomiasis E: Lung fluke

常导致"旅游者腹泻"的寄生虫是（）。 A: Schistosoma jaPonicum B: Fasciolopsis buski C: Giardia lamblia D: Entamoeba histolytica E: Cryptosporidium

下列原虫中属于孢子虫的有 A: Acanthamoeba culbertsoni B: Giardia lamblia C: Toxoplasma gondii D: Clonorchis sinensis E: Entamoeba histolytica