隔爆型乘人装置工作时，周围空气中的瓦斯、煤尘等不应超过规定的浓度。
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自动变速器的正常工作温度是（）。
A. 50～80℃
B. 80～100℃
C. 20～40℃
有“黑马皇子”之称，出演了电影《新不了情》《大魔术师》等的香港男影星是（）。
A customer with two x445 servers wants to have two NetXtreme Dual Port Gigabit Ethernet adapters installed in each server. What is the minimally supported configuration that will allow maximum throughput？（）
A. Install the two cards in slots 5 and 6 in the x445.
B. Install the two cards in slots 3 and 5 in the x445 make sure slots 4 and 6 are not occupied.
C. Install an RXE-100 on each x445 and install one card in the x445 and one card in an RXE-100 on each system.
D. Connect an RXE-100 between the two x445s and install one card in each x445 and one card in each side of the RXE-100.
作业人员应被告知其作业现场和（）存在的危险因素、防范措施及事故紧急处理措施。
A. 办公地点
B. 生产现场
C. 工作岗位
D. 检修地点
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