3×（1-13），
=3×23，
=2（米）；
答：还剩下2米．
故答案为：错误．
In those days, he would go to Mr. Black and his family, __________.
A．where he was treated as part of them
B．for whom it was good
C．that was the most important part of his life
D．with whom he had a wonderful time
X线胸片透亮增强，肺纹理增粗，膈肌降低，肋骨走向变平，肋间隙增宽。时间肺活量降低，残气量增加。肺有散在湿啰音，考虑下列哪种病变（）
A.双侧肺大疱
B.慢性支气管炎
C.支气管哮喘发作
D.肺气肿合并感染
E.肺囊肿
