题目内容：
17.(2分)
They took emergency steps to protect themselves from the ________ disease.
参考答案：
选择题：17.
- 题目分类：山东师范大学-大学英语
- 题目类型：选择题
- 查看权限：VIP
(2分)
They took emergency steps to protect themselves from the ________ disease.
(2分)
They took emergency steps to protect themselves from the ________ disease.
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