小叶性肺炎的常见并发症不包括
A.脓胸B.肺脓肿C.心力衰竭D.大疱性肺气肿E.呼吸功能衰竭
参考答案:D
There are many desks and _____________. [ ]
A. chairs
B. a chair
C. chair
走路时要注意什么?