下列哪些疾病可导致小气道通气功能降低()
A．慢性支气管炎
B．支气管哮喘
C．支气管扩张症
D．大叶性肺炎
E．小叶性肺炎
参考答案：A, B, C, E
脑动脉盗血综合征
After Mary and Jane covered 25 kilometers that day, their legs under them _____.
[ ]
A. gave in
B. gave off
C. gave out
D. gave away
