Question 4 is based on the news report you have just heard.

听力原文：

    （3）One dog has been killed and multiple dogs have been injured by a snowmobile driver in what appears to be an intentional attack on competitors in the Iditarod Race in Alaska.

    Aliy Zirkle was the first to report an attack. A snowmobile driver had repeatedly attempted to harm her and her team, and one of Zirkle’s dogs had received a non-life-threatening injury. Zirkle reported the attack when she arrived in Nulato, Alaska, in the early hours of morning. （4） Then Jeff King, a four-time champion, reported a similar attack. His team was hit by a snowmobile driver, injuring several dogs and killing a 3-year-old male dog.

    Reporter Zachariah Hughes says that neither King nor Zirkle was injured. Although this incident very much alters the race of the two participants competing for a win, both are going to continue on their way toward the finishing line. Alaska State Troopers released a statement saying they’ve arrested Arnold Demoski, 26. He faces trial on several charges. 

4. What do we learn about Jeff King?

解析：B。本题目为细节题。问题为：我们可以了解到关于Jeff  King的什么信息？根据原文“Then Jeff King, a four-time champion, reported a similar attack. ”，可知获得四次冠军的Jeff King报告了一件类似的袭击事件。故正确答案为B）He has won the Alaska Iditarod Race four times（他是夺冠四次的冠军）。