A(2025·重庆中考)
When someone's heart suddenly stops, we can use an AED to save him or her. It can be found in public places and it is easy to use. Turn it on and follow the voice instructions. Here are some key steps.

Remember: It's best to treat the patient within the "Golden 4 Minutes"! Time matters! If an AED is not around, send someone to get one and give CPR while waiting. Don't forget to call 120.
()1. When is an AED used?
A. When someone's heart suddenly stops.
B. When someone has a headache.
C. When someone's back suddenly hurts.
D. When someone has a toothache.
()2. 新考法 图片理解 Where should the pads be placed on the patient?

()3. What's the golden time to use an AED?
A. The first 4 minutes.
B. The first 5 minutes.
C. The first 6 minutes.
D. The first 7 minutes.

1. A ［解析］细节理解题。根据“When someone's heart suddenly stops, we can use an AED to save him or her. ”可知，当某人的心脏突然停止跳动时，应该使用自动体外除颤仪。故选A。
2. D ［解析］图片理解题。根据步骤1的描述“Place one pad onto the upper-right chest(胸膛). Place the other onto the lower-left chest. ”可知，一个贴片应放置在患者的右上胸部，另一个贴片应放置在左下胸部。观察四个选项中的图片，只有选项D正确地展示了这种放置方式。故选D。
3. A ［解析］细节理解题。根据“Remember: It's best to treat the patient within the 'Golden 4 Minutes'!”可知，心搏骤停后的前4分钟是使用自动体外除颤仪的黄金时间段。故选A。