肺结核并发症中，下列哪项较常见
A．支气管扩张B．脓胸C．气胸D．肺外播散E．肺气肿
参考答案：C
缺失或插入突变可导致（）
A．氨基酸置换
B．读码框移
C．二者均有
D．二者均无
Could you help me with English?（）
A.No, no way
B.No, I couldn't.
C.No, I can't.
D.Sorry I can't. I have an appointment right now.
