问题
选择题
Nowadays teachers tend to be more dependent on ________ is thought to be a great teaching aid—the computer.
A．that
B．which
C．what
D．as
答案
答案：C
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Nowadays teachers tend to be more dependent on ________ is thought to be a great teaching aid—the computer.
A．that
B．which
C．what
D．as
答案：C