单选题
According to the above article ______.
A、
to like a pig is to be "piggish"
B、
immunization of pigs is commonplace
C、
eating pork is unhealthy
D、
pet owners would never think of eating their pigs
【正确答案】
B
【答案解析】
[解析] 依据是第三段最后一句。已驯化的猪都失去了自然的免疫力，因此要给它们注射针剂以防止患病。
提交答案
关闭