【单选题】
It was the wealth of the_____pioneer landowner John Harvard that made Harvard University possible.___
A. precious
B. curious
C. anxious
D. prosperous
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答案
D
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消防头盔由帽壳、佩戴装置、___、披肩和下颏带等主要部件组成。
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下颏带由织带和___组成。
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披肩是用于保护消防员颈部和___两侧,使之免受水及其它液体或辐射热伤害的防护层。
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消防头盔帽壳后沿变形下垂不超过___;
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消防员灭火防护服由外层、___隔热层、舒适层等多层织物复合而成。
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消防员灭火防护服平时应存放在干燥通风处,尽量采取___。
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