The word "threat" underlined in Paragraph 2 means_______

单选题The word "threat" underlined in Paragraph 2 means________.

词义题型
threat意为“威胁”，而debate意为“争论，辩论”，humiliation意为“羞辱，蒙耻”risk意为“冒险，风险”，bother为“麻烦，烦扰”；因此选项C为答案。

1What is the goal of the campaign against smallpox?

2According to the passage，what was the strategy used to eliminate the spread of smallpox?

3The word“isolated”underlined in Paragraph 4 most probably means________．