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问题 单项选择题

（）是超市收银工作的前提条件。

A、商品包装

B、清点备用金

C、清洁工作

D、兑换零钞

答案

参考答案：B

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书面表达。
警方在通缉两名凶手，请根据以下表格提供的信息帮助他们写一篇告示，请知道有关线索的人尽快与警方联系，文章开头已给出。（不少于80个字）
Murderer1Murderer2
NameJimmy WhiteFrank Johnson
Age2830
Occupation                  driversalesman
Lives inMoon TownStar Town
Appearancetall , fat ,round face, small eyes,
untidy, rude		medium height, thin, nervous,
wearing a pair of glasses
Last Saturday nightThey killed a young girl near sun river town.       
         
          These two people are wanted for murder.                                                                                         
                                                                                                                                                              
                                                                                                                                                               
                                                                                                                                                              
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单项选择题

20＃钢是用含碳量的（）表示。

A、百分之几

B、千分之几

C、万分之几
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