Students should be encouraged to use Internet as resource. A. 不填; aB. the; aC. the; the

问题补充：

Students should be encouraged to use Internet as resource.

A. 不填; a

B. the; a

C. the; the

D. 不填; the

答案：

A. 不填; a

(答案→)B. the; a

C. the; the

D. 不填; the

解析：考察冠词.句意:应该鼓励学生们使用因特网作为一个资源.结合语境可知前文特指下文要作为资源的因特网,下文泛指任何一中资源,故选B.