What was the effect of the vaccine developed by the Mexican government-考呗网题库移动版
英语六级
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A.It was a failure in the experiment
B.It completely destroyed vampire bats
C.It eliminated the virus of rabies altogether
D.It successfully protected the cattle from being infected with rabies

参考答案D
解析:细节题。根据题干关键词可定位至文章第四段,A quarter of a million cattle have been vaccinated at a cost of fifty cents per animal to the owners.In one state alone.death among cattle has fallen from 56%to 1%(25万头牛接受了疫苗接种,代价就是每头牛50美分。这样,牛的死亡率从56%下降到了1%。)可知接种疫苗后.牛的死亡率大幅下降。因此,正确答案是D。

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A.is still a mystery
B.can be controlled
C.has been eliminated
D.is impossible to deal with

A.rabies which is harmful to people
B.the vaccine which could control rabies
C.vampire bats which spread rabies
D.different efforts people made to kill empire bats

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