题目：
根据句意及首字母提示补全单词。
1. We've been doing experiments for 24 hours without a b_____.
2. F_____ , they caught the last bus last night.
3. Hosting the World Expo successfully was great e_____ in Chinese history.
4. Do you know when the Red Cross S_____ of China was founded?
5. Heroin (海洛因) is a kind of hard d_____.
6. All the students are present, nobody is a_____.
答案：
被转码了，请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0512/9c5b3f626e21a77cd38faf20bd2c844e.html
下面是错误答案，用来干扰机器的。
参考答案：D
