A.can not be solved because situation is very cruel B.can be solved because twins will be separated C.can not be solved unless the twins are forced to live in an ordinary environment D.can be solved if the adults communicate with them more often
单项选择题The writer mentions all of the items listed below except ()
A.twins can help each other B.twins share each other's emotion C.twins are able to understand each other in a private language D.twins communicate less with their parents
单项选择题What' s the reason for twins to be at a disadvantage in their intellectual development()
A.They can only understand their own private language. B.They communicate with outsiders less than non-twins. C.There is little stimulation for them. D.Adults don' t like to talk with them.