A、Chemical burns. B、Victim. C、Urgency. D、Physician. C题目问的是治疗眼睛的关键词是什么。由定位句可知，紧急性是治疗眼睛问题的关键。故选C。

Many substances that come into contact with the surface of the eye can cause chemical bums, allergic reactions or inflammations, or can even be absorbed through the eye. Whenever one of these types of substances does come into contact with someone’ s eye, the eye should be flushed out immediately with water. Lukewarm water should be poured gently into the inside corner of the eye from a container two or three inches above the victim’ s eye. A water tap will do very nicely as it produces controllable pressure. The victim’ s head should be tilted so that the water will flow across the eyeball and off the face. This procedure should be followed for five to fifteen minutes, depending on the severity of the problem. Adults who are not otherwise incapacitated may use a shower to wash out the eyes. Urgency is the key word in treating eye problems of this sort. Wash out the affected eye immediately, and as soon as possible call a physician or a poison control center for additional advice.
    Q28: Which of the following is NOT a result of the eye accident?
    Q29: How far from the victim’ s head should the water be poured?
    Q30: What is the key word in the treatment of eye problems?