在课程计划和学科课程标准以外，利用课余时间，对学生实施的各种有目的、有计划、有组织的教育活动，称之为( )

A．课外教育

B．课外校外教育

C．社会活动

D．校外活动

The workers risked their lives to restore communications in the disasterstricken areas,which were

cut off________the powerful earthquake. [      ]

A. in case of  

B. in spite of  

C. instead of  

D. because of