阿摩線上測驗
41. According to the passage, which of the following statements is true about the hard hat?
(A) Global sales have doubled every ten years.
(B) The inspiration came from the inventor’s wartime experience.
(C) It was standard equipment for construction workers in the 1920s.
(D) Different colors are used in different industries to signal the roles of people on site.
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統計： A(16), B(147), C(39), D(53), E(0) #2857098
統計： A(16), B(147), C(39), D(53), E(0) #2857098
