added 3 概率论与数理统计

new file:   metadata/5c7887bf8e274f5af0bfe6fa92704ea9.yml
new file:   metadata/c2efbca199b91cfc2ef667cd20201fbd.yml
modified:   metadata/e28b97fad4825ebb86c1bedffffcc9dc.yml
new file:   metadata/fce9375be6d86376a7ace5609a0796db.yml

Author: cppHusky

metadata/5c7887bf8e274f5af0bfe6fa92704ea9.yml

@@ -0,0 +1,17 @@
+# yaml-language-server: $schema=https://byrdocs.org/schema/test.yaml
+
+id: 5c7887bf8e274f5af0bfe6fa92704ea9
+url: https://byrdocs.org/files/5c7887bf8e274f5af0bfe6fa92704ea9.pdf
+type: test
+data:
+  course:
+    type: 本科
+    name: 概率论与数理统计
+  time:
+    start: '2022'
+    end: '2023'
+    semester: First
+    stage: 期末
+  filetype: pdf
+  content:
+  - 原题

metadata/c2efbca199b91cfc2ef667cd20201fbd.yml

@@ -0,0 +1,18 @@
+# yaml-language-server: $schema=https://byrdocs.org/schema/test.yaml
+
+id: c2efbca199b91cfc2ef667cd20201fbd
+url: https://byrdocs.org/files/c2efbca199b91cfc2ef667cd20201fbd.pdf
+type: test
+data:
+  course:
+    type: 本科
+    name: 概率论与数理统计
+  time:
+    start: '2018'
+    end: '2019'
+    semester: Second
+    stage: 期末
+  filetype: pdf
+  content:
+  - 原题
+  - 答案

metadata/e28b97fad4825ebb86c1bedffffcc9dc.yml

@@ -5,7 +5,7 @@ url: https://byrdocs.org/files/e28b97fad4825ebb86c1bedffffcc9dc.pdf
 type: test
 data:
   course:
-    name: 概率论与数理统计
+    name: 概率论
   time:
     start: '2020'
     end: '2020'

metadata/fce9375be6d86376a7ace5609a0796db.yml

@@ -0,0 +1,16 @@
+# yaml-language-server: $schema=https://byrdocs.org/schema/test.yaml
+
+id: fce9375be6d86376a7ace5609a0796db
+url: https://byrdocs.org/files/fce9375be6d86376a7ace5609a0796db.pdf
+type: test
+data:
+  course:
+    type: 本科
+    name: 概率论与数理统计
+  time:
+    start: '2022'
+    end: '2023'
+    semester: First
+  filetype: pdf
+  content:
+  - 原题