维果茨基的社会文化历史理论及对幼儿与课程的影响是什么？
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安全监测装置在井下连续运行达一年时，必须出井进行全面大修和性能检验。
A. 正确
B. 错误
What are the three specific characteristics of the Cisco SAN solution for the data center? （）(Choosethree.)
A. It provides multiprotocol support.
B. It provides improved availability, strong security, and business continuance measures.
C. It enables you to connect Cisco VSAN technology and DAS technology.
D. It reduces cost and complexity by providing an easy transition to evolving technologies.
E. It allows you to create separate networks on the VSA
F. It allows you to migrate to new technologies without a complete equipment upgrade.
台湾作家琼瑶的名字出自《诗经》的《木瓜》中，请问《木瓜》出自十五国风中的哪一篇？
危险品事故或事件的初始报告可以用各种方式进行，但所有情况下都应尽快完成一份（）。
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