| Place快捷键 | 功能 | Modes快捷键 | 功能 |
|---|---|---|---|
| "R" | Place a resistor | Esc | Exit Mode |
| "C" | Place a capacitor | Space | Zoom Fit |
| "L" | Place an inductor | - | - |
| "D" | Place a diode | "F5" | Delete Mode |
| "V" | Place a voltage source | "F6" | Copy Mode |
| "Ctrl-R" | Rotate | "F7" | Move Mode |
| "Ctrl-E" | Mirror | "F8" | Drag Mode |
| "G" | Place ground | "F9"/Command+Z | Undo |
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| # 《红楼梦》重要知识梳理+常考汇总 | |
| ## 一、作者简介 | |
| 曹雪芹(约1715-约1763年),名沾,字梦阮,号雪芹,又号芹溪、芹圃,是中国古典名著《红楼梦》的作者。其籍贯有沈阳(一说辽阳)之说,生于南京,约十三岁时迁回北京。 | |
| 曹雪芹出身清代内务府正白旗包衣世家,他是江宁织造曹寅之孙,曹显之子(一说曹頫之子,约生于1724年)。 | |
| 胡适先生考证,曹雪芹早年在南京江宁织造府亲历了一段锦衣纨绔、富贵风流的生活。至雍正六年(1728),曹家因亏空获罪被抄家,曹雪芹随家人迁回北京老宅。后又移居北京西郊,靠卖字画和朋友救济为生。 | |
| 曹雪芹素性放达,爱好广泛,对金石、诗书、绘画、园林、中医、织补、工艺、饮食等均有所研究。他以坚韧不拔的毅力,历经多年艰辛,终于创作出极具思想性、艺术性的伟大作品——《红楼梦》。 |
Starting from Euler's formula