男性患者,22岁,突感呼吸困难,胸片检查如图,最可能的诊断是()
A.正常胸片
B.右侧肺气肿
C.纵隔肿瘤
D.右侧气胸
E.右侧肺栓塞
参考答案:D
—Happy birthday to you.
—______.[ ]
A. Thank you.
B. The same to you.
C. Happy birthday to you, too.
D. That's great.
双壁波纹管的规格尺寸(mm):外径(D)110≤D≤120;内径D≥90。