在现代文献概念中,文献是指以()、()、()、声音为主要记录手段的一切知识和信息的载体。
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品位分类对“通才”的要求、有利于人才综合素质的培养和提高、所以品位分类优于职位分类。()
A. 正确
B. 错误
When a flash-type evaporator is to be secured for an extended period of time, the entire unit should be drained, cleaned, and ().
A. completely filled with saltwater
B. filled with de-scaling compound
C. tightly closed to exclude air
D. vented to the atmosphere
FDD LTE下行物理层吞吐量计算,假设CFI=1,同步信道开销为0.23%,PBCH开销为0.21%,那么15M带宽下的理论下行物理层吞吐量是下述哪一项最接近()
A. 85Mbps
B. 90Mbps
C. 95Mbps
D. 100M