题目内容

变压器中,不考虑漏阻抗压降和饱和的影响,若原边电压不变,铁心不变,而将匝数增加,则励磁电流()

A. 增加
B. 减少
C. 不变
D. 基本不变

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A system administrator has increased the size the logical volume lv00. The administrator now wants to enlarge the filesystem /fs00 that is mounted on lv00 to the same size that lv00 currently is. Which of the following commands will show the administrator the number of blocks to use when increasing the size of the filesystem /fs00?()

A. lslv /fs00
B. lsfs -q /fs00
C. lsdev -Cc lv00
D. lsattr -El lv00

什么叫瓦斯压力?

关于骨岛,哪项是错误的()

A. 松质骨内局限性骨小梁增多,增粗
B. 边界清楚的致密影
C. 长轴与较粗骨小梁走行方向一致
D. 直径一般只有数厘米
E. 以上都不是

谈谈应如何准备化验仪器、工具、器皿?

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