diff --git a/app/Caches/FeaturedArticleList.php b/app/Caches/FeaturedArticleList.php
index 61d718e2..86507ebe 100644
--- a/app/Caches/FeaturedArticleList.php
+++ b/app/Caches/FeaturedArticleList.php
@@ -14,13 +14,11 @@ use Phalcon\Mvc\Model\ResultsetInterface;
 class FeaturedArticleList extends Cache
 {
 
-    protected $lifetime = 86400;
+    protected $lifetime = 3600;
 
     public function getLifetime()
     {
-        $tomorrow = strtotime('tomorrow');
-
-        return $tomorrow - time();
+        return $this->lifetime;
     }
 
     public function getKey($id = null)
diff --git a/app/Caches/FeaturedCourseList.php b/app/Caches/FeaturedCourseList.php
index 8243ce1d..c5c05c58 100644
--- a/app/Caches/FeaturedCourseList.php
+++ b/app/Caches/FeaturedCourseList.php
@@ -14,13 +14,11 @@ use Phalcon\Mvc\Model\ResultsetInterface;
 class FeaturedCourseList extends Cache
 {
 
-    protected $lifetime = 86400;
+    protected $lifetime = 3600;
 
     public function getLifetime()
     {
-        $tomorrow = strtotime('tomorrow');
-
-        return $tomorrow - time();
+        return $this->lifetime;
     }
 
     public function getKey($id = null)
@@ -30,7 +28,7 @@ class FeaturedCourseList extends Cache
 
     public function getContent($id = null)
     {
-        $limit = 8;
+        $limit = 5;
 
         $courses = $this->findCourses($limit);
 
@@ -71,7 +69,7 @@ class FeaturedCourseList extends Cache
      * @param int $limit
      * @return ResultsetInterface|Resultset|CourseModel[]
      */
-    protected function findCourses($limit = 8)
+    protected function findCourses($limit = 5)
     {
         return CourseModel::query()
             ->where('featured = 1')
diff --git a/app/Caches/FeaturedQuestionList.php b/app/Caches/FeaturedQuestionList.php
index bbb599fb..9a64b958 100644
--- a/app/Caches/FeaturedQuestionList.php
+++ b/app/Caches/FeaturedQuestionList.php
@@ -14,13 +14,11 @@ use Phalcon\Mvc\Model\ResultsetInterface;
 class FeaturedQuestionList extends Cache
 {
 
-    protected $lifetime = 86400;
+    protected $lifetime = 3600;
 
     public function getLifetime()
     {
-        $tomorrow = strtotime('tomorrow');
-
-        return $tomorrow - time();
+        return $this->lifetime;
     }
 
     public function getKey($id = null)
diff --git a/app/Http/Admin/Views/answer/search.volt b/app/Http/Admin/Views/answer/search.volt
index 198944c4..945fb5d7 100644
--- a/app/Http/Admin/Views/answer/search.volt
+++ b/app/Http/Admin/Views/answer/search.volt
@@ -42,13 +42,6 @@
                 {% endfor %}
             </div>
         </div>
-        <div class="layui-form-item">
-            <label class="layui-form-label">匿名</label>
-            <div class="layui-input-block">
-                <input type="radio" name="anonymous" value="1" title="是">
-                <input type="radio" name="anonymous" value="0" title="否">
-            </div>
-        </div>
         <div class="layui-form-item">
             <label class="layui-form-label">删除</label>
             <div class="layui-input-block">