半径越大,圆的面积就越大。[ ]
正确
--I am worn out after climbing the mountain, and you?
--Yes, _________. I could hardly rise to my feet.
A.not in the least
B.not a little
C.not a bit
D.not really
开放性气胸典型临床表现是()
A.伤侧的胸部叩诊呈鼓音
B.纵隔移位
C.呼吸困难、发绀
D.胸部可见吸吮性伤口,随呼吸气体出入伤口嘶嘶声
E.皮下气肿