Thousands and thousands of people lost their homes in the earthquake and it was impossible to

provide them _____ enough food, clothing and _____at that time.    [ ]

A. with; shelter  

B. for; houses  

C. by; housing  

D. with; shelter

非结构化面试的优点包括( )。

A．灵活自由

B．问题因人而异

C．标准统一

D．效率较高

E．得到信息较深入