33.下列何者主要用來測量石膏的硬化時間(setting time)?
(A)諾氏硬度計(Knoop hardness tester)
(B)維克氏硬度計(Vickers hardness tester)
(C)吉摩針(Gillmore needle)
(D)萬能材料試驗機(universal testing machine)
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統計: A(0), B(0), C(14), D(0), E(0) #3817468
統計: A(0), B(0), C(14), D(0), E(0) #3817468