老年人脑栓塞最常见原因是()
A.心房颤动
B.高血压痛
C.血管炎
D.血管畸形
E.高脂血症
参考答案:A
男,55岁,畏寒,高热18天,咳大量脓痰。体温39.5℃,白细胞数15.4×109/L。右肺上中叩诊呈浊音,可闻湿性啰音,曾有结核史。X线胸片示右上中肺野大片致密阴影中透亮区伴液平面。诊断首先考虑
A.肺癌体感染B.肺脓肿C.肺炎D.肺结核空洞形成
Jim borrowed a Chinese book from his classmate. He () it for three days.
A.has borrowed
B.has lent
C.has kept
D.lend