1010209 010 - hfu.edu.tw · n case of an emer enc use the stairs 2 When should you use the stairs?...
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1010209 010 - hfu.edu.tw · n case of an emer enc use the stairs 2 When should you use the stairs? (A) If anything bad should happen. (B) At all times. (C) At the nearest exit. (D)
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