《钢轨探伤管理规则》规定,在役焊缝探伤应包括焊缝和热影响区再内的整个钢轨焊接接头,即

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《钢轨探伤管理规则》规定,在役焊缝探伤应包括焊缝和热影响区再内的整个钢轨焊接接头,即自焊缝中心向两侧各延伸()。

A、200mm

B、100mm

C、50mm

D、40mm

考点:钢轨探伤工考试钢轨探伤工考试题库
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关于食管癌的病理特征下列描述哪项是正确的()。

A.以血行转移较为多见

B.病理形态可分为四型,各型的临床表现有一定差别

C.原位癌指病灶尚局限于食管黏膜内

D.鳞癌占绝大多数,下段最常见

E.一般不侵犯心包

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小题1:He told me this was the first time they ______ (see) a film in the cinema together as a family.

小题2:Henry has come in his raincoat and boots, __________(prepare) for rain.

小题3:Most students’ attitude towards fashion are reported _________(change) nowadays in a recent survey.

小题4:Many students prefer working hard to _______(equip) with knowledge.

小题5:Thank you very much for the trouble you have taken ______ (help) me with my English.

小题6:The professor spoke very clearly to make his speech easy________(understand).

小题7:Jack looked at Mary, tears filling his eyes and shouted at the words _____(hide) in his heart for years.

小题8:____(devote) to caring for the poor, Mother Teresa is greatly respected throughout the world.

小题9:Is there any possibility of their team ________(defeat) in the coming competition?

小题10:The teacher had a talk with Bob. What the teacher said set him ________(think).

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噻唑烟酸,噻唑菌胺

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化学环境、材料、信息、能源关系密切,下列说法不正确的是

A.利用催化设施,可以将汽车尾气中CO和NO转化为无害气体

B.对“地沟油”’蒸馏可以获得汽油

C.对废旧电池进行回收处理主要为了防止重金属污染水源

D.半导体行业中有一句话:“从沙滩到用户”,计算机芯片的材料是硅

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蕈样肉芽肿是一种()

A.异物肉芽肿

B.真菌性肉芽肿

C.低度恶性的组织细胞瘤

D.B淋巴细胞淋巴瘤

E.T淋巴细胞淋巴瘤

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