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

问题补充：

Students should be encouraged to use Internet as resource.

A. 不填; a

B. 不填; the

C. the; the

D. the; a

答案：

A. 不填; a

B. 不填; the

C. the; the

(答案→)D. the; a

解析：因特网专有名词用定冠词；作为一种资源，种类泛指用不定冠词a.