diff --git a/doc/api.md b/doc/api.md
index 53e97a8..23cca3a 100644
--- a/doc/api.md
+++ b/doc/api.md
@@ -220,6 +220,7 @@
 | -------- | -------------------------------------- |
 | shop | 店铺id, 比如 607ff59d4a4e16687a3b7079 		|
 | eid | 测验id, 比如 609e13eeccc78154ac683583 		|
+| delay | 每题需要增加的延迟时间, 单位秒  		|
 
 3. Response: JSON
 
diff --git a/src/api/controllers/exam.controller.ts b/src/api/controllers/exam.controller.ts
index 0416eea..111ca6e 100644
--- a/src/api/controllers/exam.controller.ts
+++ b/src/api/controllers/exam.controller.ts
@@ -20,7 +20,7 @@ class ExamController extends BaseController {
   @role('anon')
   @router('post /api/:accountid/exam/list')
   async list(req, res) {
-    let { shop, accountid, eid } = req.params
+    let { shop, accountid, eid, delay } = req.params
     if (!shop || !validShopId(shop)) {
       throw new ZError(10, '没有店铺id或者店铺id格式不正确, 测试使用: 607ff59d4a4e16687a3b7079')
     }
@@ -60,10 +60,11 @@ class ExamController extends BaseController {
     stat.timeLast = now
     history.members.set(accountid, stat)
     history.activityId = eid
-    history.expire = Date.now() + (record.qcount * record.timeone || 90) * 1000
+    let timeone = (record.timeone || 10) + ( delay || 0 )
+    history.expire = Date.now() + timeone * 1000
     history.type = 2
     history.total = record.qcount
-    history.timeone = record.timeone
+    history.timeone = timeone
     history.difficultyMode =  0
     history.qtypes = record.qtypes
     await history.save()