久疟不愈，气血瘀滞，痰浊凝结，壅阻于左胁下而形成
A．肝脾血瘀水停B．心肾不交C．肝郁气滞D．肺气不宣E．阳气不振，水湿内停
参考答案：C
— Mum, today is Friday. Must I finish my homework now?
— No, you _____. You may have a rest first and finish it tomorrow. [ ]
A. mustn't
B. can't
C. may not
D. needn't
女性，55岁。糖尿病12年，经常咳嗽半年，无发热，1天前突然咯血，胸片右上肺斑片状影，内有空洞一个，直径1cm左右。最可能是（）
A.肺癌
B.肺囊肿
C.肺结核
D.肺炎
E.支气管扩张合并感染
