Many _________ in China like pizza.[ ]
A. peoples
B. people
C. peopless
答案：B
— Bob, can you spare me a few minutes right now? I have to ask you some questions.
— ________.[ ]
A. It's a pleasure
B. Ask, please
C. Help yourself
D. Yes, go ahead
属于被动免疫治疗的是（）。
A.接种狂犬疫苗
B.接种肿瘤疫苗
C.使用卡介苗
D.TIL
E.应用短小棒状杆菌疫苗
