diff --git a/素材/先化简再用洛必达.md b/素材/先化简再用洛必达.md
new file mode 100644
index 0000000..1005062
--- /dev/null
+++ b/素材/先化简再用洛必达.md
@@ -0,0 +1,4 @@
+---
+tags:
+  - 素材
+---