编写一程序，从键盘输入10个实数，计算并输出算数平均数。
简述电子认证的作用。
Which CLI command is used to create a W3C log？（） [" make log"," log config"," w3c log config"," advance dproxy config"," mklog file"]
What are two major differences between MS-SPRing and SNCP？（） [" In an MS-SPRing， all paths are protected."," MS-SPRing is always a high-order protection."," A low order circuit cannot be protected by an MS-SPRing."," There is no theoretical limit in the number of nodes in an SNCP ring."]
磨光滑，锁上螺丝后做立即做（）（不得用走线架上的孔） ["接地","防尘","防脱漆","防锈处理"]
胡适的《易卜生主义》一文引发了一个小说和戏剧创作的“（）”。
