题目：
During a morning assessment, the nurse percusses tympany. The nurse understands that tympany is a loud, high-pitched, moderately long sound with a drumlike, musical quality that's most commonly heard over the
A．heart.
B．liver.
C．pancreas.
D．stomach.
答案：
参考答案：D
解析：Tympany is produced by air-containing structures, such as the stomach and the bowel.
