该病人最可能是发生了
A．闭合性气胸B．开放性气胸C．张力性气胸D．血胸E．肋骨骨折
参考答案：B
____ Mr. Zhang gave us some good suggestions, but we still didn’t deal with those problems very well.
A．Though
B．But
C．Because
D．/
电缆终端头、接头的铅封应符合哪些要求？
