修改12610,12627,12631题面

This commit is contained in:
WangWeiye 2023-05-23 17:29:57 +08:00
parent c6e52c60b7
commit dfbf6991d0
2 changed files with 11 additions and 8 deletions

View File

@ -1,7 +1,7 @@
import os,re,json import os,re,json
"""这里编辑题号(列表)后将在vscode中打开窗口, 编辑后保存关闭""" """这里编辑题号(列表)后将在vscode中打开窗口, 编辑后保存关闭"""
problems = "13506" problems = "12610,12627,12631"
editor = "朱敏慧" editor = "王伟叶"
def generate_number_set(string,dict): def generate_number_set(string,dict):
string = re.sub(r"[\n\s]","",string) string = re.sub(r"[\n\s]","",string)

View File

@ -332212,7 +332212,7 @@
}, },
"012610": { "012610": {
"id": "012610", "id": "012610",
"content": "如图, ``复兴''桥为人行天桥, 其主体结构是由两根等长的半圆型主梁和四根直的立柱吊起一块圆环状的桥面. 主梁在桥面上方相交于点$S$且它们所在的平面互相垂直, $S$在桥面上的射影为桥面的中心$O$. 主梁连接桥面大圆, 立柱连接主梁和桥面小圆, 地面有$4$条可以通往桥面的上行步道. 设$CD$为其中的一根立柱, $A$为主梁与桥面大圆的连接点.\n\\begin{center}\n\\begin{tikzpicture}[>=latex]\n\\draw [dashed] (-2,-1,0) -- (2,-1,0) (0,-1,-2) -- (0,-1,2);\n\\draw (-2,-1,-0.3) -- (-0.3,-1,-0.3) -- (-0.3,-1,-2);\n\\draw (-2,-1,0.3) -- (-0.3,-1,0.3) -- (-0.3,-1,2);\n\\draw (2,-1,-0.3) -- (0.3,-1,-0.3) -- (0.3,-1,-2);\n\\draw (2,-1,0.3) -- (0.3,-1,0.3) -- (0.3,-1,2);\n\\fill [domain = 0:360, white] plot ({2*cos(\\x)},0,{2*sin(\\x)});\n\\fill [domain = 0:360, pattern = north east lines] plot ({2*cos(\\x)},0,{2*sin(\\x)});\n\\fill [domain = 0:360, white] plot ({cos(\\x)},0,{sin(\\x)});\n\\draw [domain = 0:360,ultra thick,samples = 100] plot ({2*cos(\\x)},0,{2*sin(\\x)});\n\\draw [domain = 0:360,thick] plot ({cos(\\x)},0,{sin(\\x)});\n\\filldraw (0,0) circle (0.03) node [left] {$O$} coordinate (O);\n\\draw [domain = 0:180,thick] plot ({-sqrt(2)*cos(\\x)},{2*sin(\\x)},{sqrt(2)*cos(\\x)});\n\\draw [domain = 0:180,thick] plot ({sqrt(2)*cos(\\x)},{2*sin(\\x)},{sqrt(2)*cos(\\x)});\n\\draw (0,2,0) node [above] {$S$} coordinate (S);\n\\draw ({cos(45)},0,{sin(45)}) --++ (0,{sqrt(3)},0);\n\\draw ({cos(135)},0,{sin(135)}) node [right] {$D$} coordinate (D) --++ (0,{sqrt(3)},0) node [above left] {$C$} coordinate (C);\n\\draw ({cos(225)},0,{sin(225)}) --++ (0,{sqrt(3)},0);\n\\draw ({cos(315)},0,{sin(315)}) --++ (0,{sqrt(3)},0);\n\\draw [thick] ({2*cos(45)},0,{2*sin(45)}) node [below left] {$A$} coordinate (A) -- ({3*cos(45)},-1,{3*sin(45)}) node [below] {$B$} coordinate (B);\n\\draw [thick] ({2*cos(45)},0,{2*sin(45)}) node [below left] {$A$} coordinate (A) -- ({3*cos(45)},-1,{3*sin(45)}) node [below] {$B$} coordinate (B);\n\\draw [thick] ({2*cos(135)},0,{2*sin(135)}) -- ({3*cos(135)},-1,{3*sin(135)});\n\\draw [thick] ({2*cos(315)},0,{2*sin(315)}) -- ({3*cos(315)},-1,{3*sin(315)});\n\\draw [thick,dashed] ({2*cos(225)},0,{2*sin(225)}) -- ({3*cos(225)},-1,{3*sin(225)});\n\\end{tikzpicture}\n\\end{center}\n(1) 求证: $CD\\parallel$平面$SOA$;\\\\\n(2) 设$AB$为经过$A$的一条步道, 其长度为$12$米且与地面所成角的大小为$30^{\\circ}$. 桥面小圆与大圆的半径之比为$4: 5$, 当桥面大圆半径为$20$米时, 求点$C$到地面的距离.", "content": "如图, ``复兴''桥为人行天桥, 其主体结构是由两根等长的半圆型主梁和四根直的立柱吊起一块圆环状的桥面. 主梁在桥面上方相交于点$S$且它们所在的平面互相垂直, $S$在桥面上的射影为桥面的中心$O$. 主梁连接桥面大圆, 立柱连接主梁和桥面小圆, 地面有$4$条可以通往桥面的上行步道. 设$CD$为其中的一根立柱, $A$为主梁与桥面大圆的连接点.\n\\begin{center}\n\\begin{tikzpicture}[>=latex]\n\\draw [dashed] (-2,-1,0) -- (2,-1,0) (0,-1,-2) -- (0,-1,2);\n\\draw (-2,-1,-0.3) -- (-0.3,-1,-0.3) -- (-0.3,-1,-2);\n\\draw (-2,-1,0.3) -- (-0.3,-1,0.3) -- (-0.3,-1,2);\n\\draw (2,-1,-0.3) -- (0.3,-1,-0.3) -- (0.3,-1,-2);\n\\draw (2,-1,0.3) -- (0.3,-1,0.3) -- (0.3,-1,2);\n\\fill [domain = 0:360, white] plot ({2*cos(\\x)},0,{2*sin(\\x)});\n\\fill [domain = 0:360, pattern = north east lines] plot ({2*cos(\\x)},0,{2*sin(\\x)});\n\\fill [domain = 0:360, white] plot ({cos(\\x)},0,{sin(\\x)});\n\\draw [domain = 0:360,ultra thick,samples = 100] plot ({2*cos(\\x)},0,{2*sin(\\x)});\n\\draw [domain = 0:360,thick] plot ({cos(\\x)},0,{sin(\\x)});\n\\filldraw (0,0) circle (0.03) node [left] {$O$} coordinate (O);\n\\draw [domain = 0:180,thick] plot ({-sqrt(2)*cos(\\x)},{2*sin(\\x)},{sqrt(2)*cos(\\x)});\n\\draw [domain = 0:180,thick] plot ({sqrt(2)*cos(\\x)},{2*sin(\\x)},{sqrt(2)*cos(\\x)});\n\\draw (0,2,0) node [above] {$S$} coordinate (S);\n\\draw ({cos(45)},0,{sin(45)}) --++ (0,{sqrt(3)},0);\n\\draw ({cos(135)},0,{sin(135)}) node [right] {$D$} coordinate (D) --++ (0,{sqrt(3)},0) node [above left] {$C$} coordinate (C);\n\\draw ({cos(225)},0,{sin(225)}) --++ (0,{sqrt(3)},0);\n\\draw ({cos(315)},0,{sin(315)}) --++ (0,{sqrt(3)},0);\n\\draw [thick] ({2*cos(45)},0,{2*sin(45)}) node [below left] {$A$} coordinate (A) -- ({3*cos(45)},-1,{3*sin(45)}) node [below] {$B$} coordinate (B);\n\\draw [thick] ({2*cos(45)},0,{2*sin(45)}) node [below left] {$A$} coordinate (A) -- ({3*cos(45)},-1,{3*sin(45)}) node [below] {$B$} coordinate (B);\n\\draw [thick] ({2*cos(135)},0,{2*sin(135)}) -- ({3*cos(135)},-1,{3*sin(135)});\n\\draw [thick] ({2*cos(315)},0,{2*sin(315)}) -- ({3*cos(315)},-1,{3*sin(315)});\n\\draw [thick,dashed] ({2*cos(225)},0,{2*sin(225)}) -- ({3*cos(225)},-1,{3*sin(225)});\n\\end{tikzpicture}\n\\end{center}\n(1) 求证: $CD\\parallel$平面$SOA$;\\\\\n(2) 设$AB$为经过$A$的一条步道, 其长度为$12$米且与地面所成角的大小为$30^{\\circ}$. 桥面小圆与大圆的半径之比为$4: 5$, 当桥面大圆半径为$20$米时, 求点$C$到地面的距离.",
"objs": [], "objs": [],
"tags": [ "tags": [
"第六单元" "第六单元"
@ -332224,7 +332224,8 @@
"usages": [], "usages": [],
"origin": "2023届普陀区一模试题19", "origin": "2023届普陀区一模试题19",
"edit": [ "edit": [
"20221215\t王伟叶" "20221215\t王伟叶",
"20230523\t王伟叶"
], ],
"same": [], "same": [],
"related": [], "related": [],
@ -332601,7 +332602,7 @@
}, },
"012627": { "012627": {
"id": "012627", "id": "012627",
"content": "掷两颗骰子, 观察掷得的点数. 设事件$A$为: 至少一个点数是奇数; 事件$B$为: 点数之和是偶数, 事件$A$的概率为$P(A)$, 事件$B$的概率为$P(B)$. 则$1-P(A \\cap B)$是下列哪个事件的概率\\bracket{20}.\n\\twoch{两个点数都是偶}{至多有一个点数是偶数}{两个点数都是奇数}{至多有一个点数是奇数}", "content": "掷两颗骰子, 观察掷得的点数. 设事件$A$为: 至少一个点数是奇数; 事件$B$为: 点数之和是偶数, 事件$A$的概率为$P(A)$, 事件$B$的概率为$P(B)$. 则$1-P(A \\cap B)$是下列哪个事件的概率\\bracket{20}.\n\\twoch{两个点数都是偶}{至多有一个点数是偶数}{两个点数都是奇数}{至多有一个点数是奇数}",
"objs": [], "objs": [],
"tags": [ "tags": [
"第八单元" "第八单元"
@ -332613,7 +332614,8 @@
"usages": [], "usages": [],
"origin": "2023届长宁区一模试题15", "origin": "2023届长宁区一模试题15",
"edit": [ "edit": [
"20221215\t王伟叶" "20221215\t王伟叶",
"20230523\t王伟叶"
], ],
"same": [], "same": [],
"related": [], "related": [],
@ -332701,7 +332703,8 @@
"usages": [], "usages": [],
"origin": "2023届长宁区一模试题19", "origin": "2023届长宁区一模试题19",
"edit": [ "edit": [
"20221215\t王伟叶" "20221215\t王伟叶",
"20230523\t王伟叶"
], ],
"same": [], "same": [],
"related": [], "related": [],