diff --git a/app/models/laboratory.rb b/app/models/laboratory.rb
index ce5a56c0d..2ba86ed90 100644
--- a/app/models/laboratory.rb
+++ b/app/models/laboratory.rb
@@ -50,7 +50,7 @@ class Laboratory < ApplicationRecord
     if main_site?
       not_shixun_ids = Shixun.joins(:laboratory_shixuns).where("laboratory_shixuns.laboratory_id != #{Laboratory.current.id}")
       Shixun.where.not(id: not_shixun_ids.pluck(:shixun_id))
-    elsif sync_subject
+    elsif sync_shixun
       laboratory_shixun_ids = laboratory_shixuns.pluck(:shixun_id)
       school_shixun_ids = Shixun.joins("join user_extensions on shixuns.user_id=user_extensions.user_id").where(user_extensions: { school_id: school_id }).pluck(:id)
       shixun_ids = laboratory_shixun_ids + school_shixun_ids
diff --git a/public/react/src/modules/tpm/TPMIndexHOC.js b/public/react/src/modules/tpm/TPMIndexHOC.js
index b2cba2aca..73c882ab5 100644
--- a/public/react/src/modules/tpm/TPMIndexHOC.js
+++ b/public/react/src/modules/tpm/TPMIndexHOC.js
@@ -20,6 +20,7 @@ import Trialapplication from "../login/Trialapplication";
 
 const $ = window.$;
 const versionNum = '0001';
+const timestamp = Date.parse(new Date());
 // let _url_origin = getUrl()
 let _url_origin='';
 if(window.location.port === "3007"){
@@ -35,14 +36,14 @@ if (!window['indexHOCLoaded']) {
   // $('head').append($('<link rel="stylesheet" type="text/css" />')
   //     .attr('href', `${_url_origin}/stylesheets/educoder/antd.min.css?1525440977`));
   $('head').append($('<link rel="stylesheet" type="text/css" />')
-      .attr('href', `${_url_origin}/stylesheets/css/edu-common.css?8`));
+      .attr('href', `${_url_origin}/stylesheets/css/edu-common.css?${timestamp}`));
 
   $('head').append($('<link rel="stylesheet" type="text/css" />')
-      .attr('href', `${_url_origin}/stylesheets/educoder/edu-main.css?8`));
+      .attr('href', `${_url_origin}/stylesheets/educoder/edu-main.css?${timestamp}`));
 
   // index.html有加载
 	$('head').append($('<link rel="stylesheet" type="text/css" />')
-		.attr('href', `${_url_origin}/stylesheets/educoder/edu-all.css?8`));
+		.attr('href', `${_url_origin}/stylesheets/educoder/edu-all.css?${timestamp}`));
 
 
   // $('head').append($('<link rel="stylesheet" type="text/css" />')
diff --git a/public/react/src/tpm/TPMIndexHOC.js b/public/react/src/tpm/TPMIndexHOC.js
index 451344a56..9aa3d4bbc 100644
--- a/public/react/src/tpm/TPMIndexHOC.js
+++ b/public/react/src/tpm/TPMIndexHOC.js
@@ -20,6 +20,7 @@ import Trialapplication from "../login/Trialapplication";
 
 const $ = window.$;
 const versionNum = '0001';
+const timestamp = Date.parse(new Date());
 // let _url_origin = getUrl()
 let _url_origin='';
 if(window.location.port === "3007"){
@@ -35,14 +36,14 @@ if (!window['indexHOCLoaded']) {
   // $('head').append($('<link rel="stylesheet" type="text/css" />')
   //     .attr('href', `${_url_origin}/stylesheets/educoder/antd.min.css?1525440977`));
   $('head').append($('<link rel="stylesheet" type="text/css" />')
-      .attr('href', `${_url_origin}/stylesheets/css/edu-common.css?8`));
+      .attr('href', `${_url_origin}/stylesheets/css/edu-common.css?${timestamp}`));
 
   $('head').append($('<link rel="stylesheet" type="text/css" />')
-      .attr('href', `${_url_origin}/stylesheets/educoder/edu-main.css?8`));
+      .attr('href', `${_url_origin}/stylesheets/educoder/edu-main.css?${timestamp}`));
 
   // index.html有加载
 	$('head').append($('<link rel="stylesheet" type="text/css" />')
-		.attr('href', `${_url_origin}/stylesheets/educoder/edu-all.css?8`));
+		.attr('href', `${_url_origin}/stylesheets/educoder/edu-all.css?${timestamp}`));
 
 
   // $('head').append($('<link rel="stylesheet" type="text/css" />')