下列哪一项化验检查对诊断支气管扩张最有意义()
A.肺功能
B.血气分析
C.痰细菌培养
D.HRCT
E.纤维支气管镜检查
参考答案:D
On April 25th, 2007, thousands of Russians went to say farewell to Boris Yeltsin,
the country's first popularly _____ leader.[ ]
A. electing
B. elected
C. to elect
D. elect
安全监控设备中断运行或者出现异常情况,查明原因,采区措施及时处理,期间可采用人工检测。