Singular is use in following situation:
    "Any question can be answered..."
    "Any child can learn to swim"
    "Any wall can be torn down" etc
Plural is used in following situation
If you explain something at a conference (for example), in the end you would say "Any questions?".
for detailed discussion please see  
http://english.stackexchange.com/questions/23618/should-i-write-any-question-or-any-questions
checked on the internet, here is what I got
所有跟帖:
                    •                    
                    没有绝对,要见机行事
                     -郁金香花园- 
                    ♀                    
                         
                    
                                                            
                         (0 bytes)
                        ()
                        05/07/2015 postreply
                                                22:35:05
                    
                                        
                    
                    
                                        
                        (0 bytes)
                        ()
                        05/07/2015 postreply
                                                22:35:05
                    
                    
