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问题 填空题

儿童多动症是小学中最为常见的以（） 缺陷和活动过度为特征的行为障碍综合症。

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参考答案：注意力

判断题

食品生产许可证有效期届满，企业继续生产的，应当在食品生产许可证有效期满前6个月内，向原受理部门提出换证申请。
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单项选择题

Multipurpose Internet Mail Extension (MIME) is a (71) document messaging standard in theInternet enviroment.With MIME，users can send (72) Email messages that include audio，video，graphices，and text to any other user of TC/IP network.Richtext information can also be (73) into messages.It defines the fonts，formats，and (74) features of a document sothe document can be easily (75) on many different types of systems.

A．restored

B．redisplayed

C．stored

D．executed
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