Updated 远程教学之回答相关消息 (markdown)

@@ -39,4 +39,18 @@
   command:"selectSentenceCandidate"
   command:"selectSentenceCandidate"
   candidate:"what is your name?"
   candidate:"what is your name?"
 }
 }
+
+文字选择（包括测验题中的选择题，阅读理解，完形填空，音视频听力练习中的选择题）
+{
+  type:"answer"
+  command:"selectTextAnswer"
+  candidate:"It is a book."
+}
+
+听音选图
+{
+  type:"answer"
+  command:"selectImageAnswer"
+  candidate:图片id
+}
 ```
 ```