气管移向患侧见于()()。
参考答案:肺不张;广泛肺纤维化
I never seem to lose any weight, __________I try hard.
A.even though
B.no matter how
C.as if
D.ever since
平卧,抬高患肢排空曲张静脉血液,在大腿根部上止血带,阻止大隐静脉血回流,然后站立观察,如在30秒内不充盈,表示
A.交通支瓣膜功能不好B.交通支瓣膜功能好C.深静脉不通D.深静脉通畅E.大隐静脉人股静脉瓣膜功能好