肺气肿为（）
A.纤维素性炎
B.咳、痰、喘症状为主
C.末梢肺组织含气量过多
D.肺动脉高压
E.化脓性炎
参考答案：C
—______ your sister ______ in Greener China for a long time?
—Yes.She joined it five years ago.
A．Has; been
B．Have; been
C．Has; joined
D．Have; joined
按新九分法计算烧伤面积躯干和会阴占全身面积的（）。
A.25%
B.27%
C.30%
D.32%
E.35%
