脓胸纤维板剥除术的适应证是()
A.病程短的慢性脓胸,肺内无病变
B.伴支气管胸膜瘘
C.肺内有病灶,肺不能复张
D.急性包裹性脓胸
E.病程久,肺有纤维变性
参考答案:A
—Jane, want another drink?
—
—I said, would you like another drink?
A.Repeat.
B.Once again.
C.Sorry?
D.So what?
()钻具是最简单的取心工具,一般用于完整、致密、少裂隙的岩矿层。
A、单管
B、双动双管
C、绳索取心
D、单动双管