【名词&注释】
支气管(bronchial)、输卵管(oviduct)、风湿性心脏病(rheumatic heart disease)、唾液腺(salivary gland)、右心房(right atrium)、肺循环高压(pulmonary circutationhypertension)、间质性肺水肿(pulmonary interstitial edema)
[单选题]诊断风湿性心脏病二尖瓣严重损害,直接的X线征象是
A. 肺循环高压(pulmonary circutationhypertension)
B. 左心房重度增大
C. 二尖瓣区钙化
D. 右心房重度增大
E. 重度间质性肺水肿(pulmonary interstitial edema)