局限性阻塞性肺气肿，最常见的病因是（）
A.支气管肺癌
B.慢性支气管炎
C.支气管扩张
D.支气管哮喘
E.小叶性肺炎
参考答案：A
产伤性颅内出血最常见的类型是（）
A.脑室周围-脑室内出血
B.蛛网膜下腔出血
C.硬膜下出血
D.脑实质出血
E.小脑出血
______ visitors to the UK were asked by newspaper reporters what their impressions of the British people were.
A．The number of
B．A number of
C．Numbers of
D．Any numbers of
