咽喉红肿高突，疼痛剧烈，吞咽困难，称为（）
A.乳蛾
B.喉痈
C.白喉
D.疫喉
E.咽喉腐烂
参考答案：B
Security was such a major concern at the G8 Summit that no journalists could approach the meeting zone without ________ the special pass.
A．producing
B．issuing
C．commanding
D．involving
非并网自备发电机安全管理是如何规定的？
