SN348/368电缆线的衰减系数为：10MHz（）db/100m。
A.≤8
B.≥8
C.2.5≤
D.≥2.5
参考答案：A
The number of people invited ____fifty, but a number of them _____absent for different reasons.
A．were; was
B．was ; was
C．was; were
D．were; were
按分经治疗规律，足少阳经治疗
A．侧头、耳病、胁肋病B．前头、口齿、咽喉、胃肠病C．后头、肩胛病、神志病D．后头、背腰病E．肺、喉病
