四六级考试

【单选题】Passage Two
Questions 29 to 31 are based on the passage you have just hearD、A、Stop the flow of blood if the person is bleeding.
B、Perform the operation whenever necessary.
C、Do artificial respiration if the person has stopped breathing.
D、Do the best you can until a doctor arrives.
网考网参考答案：B
网考网解析：
文中并没有提到B选项的内容，根据排除法所以选择B。 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>