广播电台、电视台的用电，按供电可靠性要求应分为一级供电负荷。
参考答案：对
29-year-old Yicheng mayor named Zhou Senfeng was__________ by a great many netizens that he had copied someone else' papers.
A．questioned
B．witnessed
C．envied
D．confirmed
关于脊柱的摄影特点，不妥的是
A．尽量减少各个椎体影像的重叠B．应包括邻近有明确标志的椎体C．下部腰椎摄影应注意性腺防护D．将下部椎体置于X线管阳极端E．胸、腰椎摄影均应使用滤线栅
