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鞋予的尺码应稍大些,最好垫一双棉鞋垫,脚放在里面要有点空问。其次,鞋底应稍高些,这样可以起到与冰冷地面隔寒的作用()
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A.550
B.600
C.650
D.700
A.550元
B.600元
C.650元
D.700元
A.可以穿硬底鞋登杆
B.脚扣皮带必须坚韧耐用,脚扣各焊接处必须牢固
C.脚扣上的胶皮应保持完整,破裂露出股里线时,应及时更换
D.登杆时应随时观察并避开杆顶障碍物
A.①②
B.①③
C.②④
D.③④
A.焊工所穿衣服、鞋、帽等必须干燥,脚下应垫绝缘垫
B.在金属容器内同时进行电焊、气焊或气割作业
C.在金属容器内进行焊接或切割作业时,入口处应设专人监护,并在监护人伸手可及处设二次回路的切断开关
D.焊炬、割炬不得在容器内点火
??提示:一女士在商店买鞋,先试5号鞋,不合适,又试一双4号的,觉得很舒服,且是成本价,就买下来了。
Salesgirl:1________ ,madam?There are all kinds of shoes in our shop.
Woman:I want to buy a pair of sports shoes.
Salesgirl:2________?
Woman:I think size 5. I prefer white colour.But yellow ones are OK.
Salesgirl:These are size 5. You can try them on.3 ________?
Woman:Not quite. They’re a little big. May I have a look at another pair?
Salesgirl:Sure. Try on this one then.It’s size 4. 4________ now?
Woman:Comfortable. 5________ ?
Salesgirl:Twenty dollars.We are selling it at cost.
Woman:Really? I&39;ll take it then. ________________
??
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请帮忙给出每个问题的正确答案和分析,谢谢!