问题
选择题
Some people disagree with the idea _____ digital textbook will improve education quality while the traditional textbook is out of date.
A．because
B．which
C．that
D．as
答案
答案：C
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Some people disagree with the idea _____ digital textbook will improve education quality while the traditional textbook is out of date.
A．because
B．which
C．that
D．as
答案：C