裁判通常被称为赛场上的法官，场上一切将由裁判裁决，为中立者。
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瓦斯保护的保护范围是（）
A. 油箱内部故障
B. 引线故障
C. 各侧电流互感器故障
以下为保健食品禁用物品的是（）。
A. 杏仁
B. 首乌藤
C. 绞股蓝
D. 夹竹桃
You are maintaining your OLTP database in Oracle10g. You have not set the warning level and critical level threshold values for space usage of the DATA1 tablespace. What will be the impact？（）
A. No warning level or critical level alert will be generated.
B. A warning level alert will never be generated， but a critical level alert will be generated when 97 percent space of the DATA1 tablespace is used.
C. A critical level alert will never be generated， but a warning level alert will be generated when 85 percent space of the DATA1 tablespace is used.
D. A warning level alert will be generated at 85 percent space usage of the DATA1 tablespace， and a critical level alert is generated at 97 percent space usage of the DATA1 tablespace.
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