16. As a safety measure, the detonator for a nuclear device may be made of _____ each of which is controlled by a different employee.
(A) two equipments
(B) two equipment pieces
(C) two pieces of equipments
(D) two pieces of equipment

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統計： A(17), B(3), C(16), D(100), E(0) #568785

詳解 (共 2 筆)

#891581
equipment為不可屬名詞

2
0
#818054
 detonator雷管；爆炸物；爆鳴器
1
0