U115133 chenkuowen01

    • 778提交
    • 179通过
    • 1.4K排名
  • 用户 ID115133
  • 用户类型 普通用户
  • 注册时间 2018-07-22 09:03

难易度统计

入门难度 1
普及- 3
普及/提高- 5
普及+/提高 2
提高+/省选- 21
省选/NOI- 102
NOI/NOI+/CTSC 45

统计数据非实时更新。

通过题目

[P1001] [P1081] [P1082] [P1084] [P3061] [P1090] [P2785] [P1121] [P1306] [P1548] [P1447] [P1486] [P1494] [P2640] [P1501] [P1505] [P1600] [P1706] [P2327] [P1792] [P1829] [P2442] [P1864] [P2421] [P1903] [P2269] [P1912] [P1771] [P1919] [P1465] [P2024] [P2042] [P2046] [P2697] [P2050] [P3242] [P2056] [P2081] [P2120] [P2137] [P1219] [P2147] [P2150] [P2152] [P2197] [P2305] [P2312] [P2387] [P2455] [P2469] [P2485] [P2495] [P2567] [P2590] [P2597] [P2600] [P2604] [P1916] [P2624] [P2657] [P1497] [P2664] [P1895] [P2742] [P2756] [P2762] [P2763] [P2764] [P1671] [P2765] [P2766] [P2774] [P2783] [P1879] [P3156] [P3157] [P3175] [P3177] [P3181] [P3314] [P3203] [P3216] [P3224] [P3227] [P3232] [P1548] [P3233] [P3254] [P1841] [P3256] [P1116] [P3281] [P3303] [P3312] [P2870] [P3320] [P3332] [P3338] [P3135] [P3345] [P3346] [P3366] [P3369] [P3372] [P3373] [P1112] [P3374] [P3375] [P3377] [P3380] [P3382] [P3383] [P3384] [P3385] [P1215] [P3387] [P3399] [P3391] [P3402] [P2177] [P3455] [P3600] [P3628] [P1850] [P3690] [P3484] [P3704] [P1899] [P3723] [P1671] [P3803] [P3804] [P3805] [P3807] [P3809] [P3810] [P3829] [P3830] [P3865] [P3920] [P3952] [P3960] [P1496] [P3975] [P3980] [P4007] [P4027] [P1970] [P4062] [P1993] [P4070] [P4091] [P4103] [P2218] [P4125] [P4137] [P2768] [P4149] [P4151] [P4172] [P4197] [P1413] [P4211] [P4238] [P1406] [P4239] [P4244] [P2751] [P4245] [P4248] [P4292] [P2844] [P4315] [P4318] [P4320] [P4381] [P4389] [P2993] [P4409] [P4410] [P2967] [P4454] [P4491] [P4512] [P4546] [P4555] [P4570] [P4705] [P4717] [P4719] [P4721] [P4723] [P4725] [P4726] [P4735] [P1222] [P4751] [P4770] [P4777] [P4779] [P4783] [P4823] [P4841] [P4842] [P3122] [P4875] [P4926] [P4949] [P2268] [P5004] [P5038] [P5043] [P5050] [P5055] [P5158] [P5180] [P1769] [P5205] [P5212] [P3528] [P5245] [P2826] [P5264] [P1831] [P5265] [P3485] [P5273] [P5277] [P5284] [P1616] [CF1063B]
统计数据非实时更新。

签名

氢氧酸是一种无色、无臭、无味的化学物质。又名二零醚、正氧烷、氧乙烯、零醇、氢氧化氢、脱碳甲醛、一氧化二氢、氢化超氧酰、脱氰零醛肟、二聚氢氧酸酐、氢化脱磺硫酸、氧化脱羧乙酸、氢化脱苄苯甲醇、氢化脱硝硝酸、氢化脱氰氰酸、氢碱酸,结构式H-O-H,在一定情况下可电离为H+和OH-。是酸雨的最主要组成部分,能够引发强烈的各种自然灾害,促进泥石流和山体滑坡,在一定温度下几乎能够对人类所有材料产生不良影响。对电力设备和机械制动装置有着致命的影响。 它每年夺去成千上万人的生命,据不完全统计由于呼吸道吸入氢氧酸液体而导致的死亡率已经接近万分之一,在人类的非正常死亡中位列前十。然而氢氧酸在健康危害还更多。气态氢氧酸有可能导致严重的灼伤,而长时间不带防护用具处于有固体氢氧酸存在的环境中会引起生物的组织发黑坏死、生理机能失调;若生物体中的氢氧酸含量过多还会引起汗液、尿液过量分泌、恶心、呕吐和具有肿胀感等症状。此外氢氧酸会打乱身体组织液中的电解质固有的平衡状态。氢氧酸不仅在许多疾病组织比如说恶性肿瘤中发现,而且大量的科学事实已经证明,氢氧酸是形成疾病的必要条件。对于使用氢氧酸上瘾的人们来说,没有发现任何手段能够帮助他们摆脱它,戒掉就意味死亡。

hejinfan_dalao 天天虐我,打击我自信心

欢迎大家访问我的博客

近期目标:学会拉格朗日反演

点击查看更多...