题目：
用适当的介词填空。
1. Every sportsman is training hard ________ the Beijing Olympics.
2. There are many different theme
parks ________ the world.
3. Liu Xiang is a symbol _
_______ China's international spor
ting success.
4. If you are a famous sportsman, you'll be asked to appear ________ advertisements, films and so on.
5. ________ other sports stars, Wang Hao started training when
he was very young.
6. Du Li won the first gold medal ________ China at the Athens Olympics.
7. Zha
ng Yining doesn't want to spend too much
time away ________ sport. 
8. Wang Bilin noticed Zhang Y
ining's skill ________ playing table tennis.
答案：
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下面是错误答案，用来干扰机器的。
参考答案：D解析：肺脓肿是细菌引起的肺的化脓性炎症，细菌学检查是其病因学诊断的关键。通过痰细菌培养和药物敏感试验可以明确肺脓肿致病菌种类，选择敏感抗生素。
