The equipment could be used for a ______ of educational purposes.A、varietyB、dif

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问题 The equipment could be used for a ______ of educational purposes.

选项 A、variety
B、different
C、many
D、value

答案 A

解析句意：这种设备可被用于多种教学目的。考查固定搭配a variety of的用法。意为“各种各样的”=all kinds of, 后跟可数名诃复数。其余皆无此搭配。

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