基准面（）m及以上有可能坠落的高度进行的作业均称为高处作业。
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One precaution to take prior to working in a freshly painted compartment where there are an excessive amount of paint fumes, is to （）.
A. take shallow breaths of air
B. ventilate the area
C. wear a breathing apparatus while working
D. keep a charged fire hose handy
“夫哀莫大於心死，而人死亦次之。”出自（）。
A. 《庄子•外篇•山水》
B. 《庄子•外篇•田子方》
C. 《庄子•外篇•至乐》
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