题目内容:
Whydopsychologistswanttohelpthehabituallylonelypeople?
A.Toimprovetheirlivingconditions B.Tomakenewpsychologicaldiscoveries
C.Totreatheartdiseasemoreeffectively
D.Tosolvetheirmentalandphysicalproblems
参考答案:
答案解析: