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单选题
Hoof-and-mouth disease was eliminated in the United States by slaughtering affected herds of cattle.
A
isolating
B
testing
C
vaccinating
D
killing
参考答案
参考解析
解析：
句意：口蹄疫在美国的消除是通过屠宰所有的受影响的牲口。kill杀，屠杀。isolate（隔离）有些像，但从流行病学的角度讲，光是隔离是不能完全消除某种疾病的，只能是“控制”而已。Vaccinate（预防接种），顾名思义也只是“预防”而已，而不能eliminate了，test就更远了。
句意：口蹄疫在美国的消除是通过屠宰所有的受影响的牲口。kill杀，屠杀。isolate（隔离）有些像，但从流行病学的角度讲，光是隔离是不能完全消除某种疾病的，只能是“控制”而已。Vaccinate（预防接种），顾名思义也只是“预防”而已，而不能eliminate了，test就更远了。
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