题目内容：
To ensure that employees know what to do in an emergency and to test the effectiveness of emergency exit routes, the emergency drills should be held once half a year.选择一项：
对
错
参考答案：
选择题：To ensure that employees know what to do in an eme
- 题目分类：管理英语3
- 题目类型：选择题
- 查看权限：VIP
选择一项：
对
错