13. How to choose an appropriate helmet?
(A)Choose a helmet used at the construction site, also called a hard hat, which is light with good ventilation
(B)Select the helmet with BSMI certification sticker, which is safer
(C)Choose a dark helmet because it does not show stains.
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統計: A(0), B(1), C(0), D(0), E(0) #2215302
統計: A(0), B(1), C(0), D(0), E(0) #2215302