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题目内容
（国家开放大学 人文英语3）
By making learning possible anytime and anywhere, distance education is a powerful tool _________ supporting lifelong learning.
单选题 (10 分)
A.
to
B.
for
C.
with
单选题 (10 分)
A.
to
B.
for
C.
with
参考答案