问题
单项选择题
Of the following signs and symptoms of bowel obstruction, which is related primarily to small bowel obstruction rather than large bowel obstruction
A．Profuse vomiting.
B．Cramping abdominal pain.
C．Abdominal distention.
D．High-pitched bowel sounds above the obstruction.
答案
参考答案：A
解析：Profuse vomiting is the classic sign of small bowel obstruction and rarely occurs with large bowel obstruction.