可用于几乎所有金属和合金的焊接，特别用于有色金属、不锈钢和耐热钢，其焊接钢板厚度在3

发布时间：2017-05-02 14:02 │ 来源：www.tikuol.com

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可用于几乎所有金属和合金的焊接，特别用于有色金属、不锈钢和耐热钢，其焊接钢板厚度在3mm以下为宜，此种焊接方法为( )。

A．埋弧焊
B．C0₂气体保护焊
C．钨极惰性气体保护焊
D．钎焊

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完形填空。
Mr. Green worked in an office. Every morning he had __1__ with his family at half past seven, __2__ his newspaper,drank a cup of coffee and then __3__ his house at eight o'clock and went to __4__ his train to town.  One morning he was still sitting __5__ at the breakfast table and reading his newspaper at five past eight. He asked his wife for __6__ cup of coffee.  "One more?" she asked. "but aren't you __7__ to the office today? __8__ you got a holiday?" "The office?" he looked up from his __9__ and said sadly. "I thought I __10__ at the office.
( ) 1. A. breakfast ( ) 2. A. watched ( ) 3. A. leave ( ) 4. A. make ( ) 5. A. happy ( ) 6. A. other ( ) 7. A. going ( ) 8. A. Do ( ) 9. A. book ( ) 10. A. was	B. lunch B. saw B. leaving B. by B. happily B. another B. to go  B. Did  B. magazine B. am 	C. supper C. read C. leaves C. have C. quickly C. the other C. go C. Have C. newspaper C. wer	D. sports D. looked D. left D. take D. noisily D. others D. went D. Has D. list D. sports

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关系模式规范化的最起码的要求是达到第一范式，即满足

A．每个非码属性都完全依赖于主码

B．主码属性惟一标识关系中的元组

C．关系中的元组不可重复

D．每个属性都是不可分解的

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餐饮部下属主要部门职能各不相同，负责中西餐宴会、冷餐酒会、鸡尾酒会等各种活动的预订、准备和服务的部门是（）。

A.餐厅部

B.宴会部

C.管事部

D.酒水部

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题型：单项选择题

下列工程建设项目管理实施方式中，( )适用于因投资项目较小、周期很短而较难委托专业项目管理的情况。

A．业主方自设管理机构实施管理
B．业主方委托专业管理咨询单位代理管理
C．业主方与管理咨询单位的一体化项目管理
D．由专业项目管理单位进行管理承包

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题型：单项选择题

头部黄癣引起的秃发是（）

A.虫蚀状

B.暂时性

C.永久性

D.男性型

E.经治疗可再生

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