答案:A
解析:
Choice (A) is correct. It avoids the errors of the other options by correctly using the preposition "as" to introduce the "wide range of purposes" for which the gong is used.
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答案:A
解析:
Choice (A) is correct. It avoids the errors of the other options by correctly using the preposition "as" to introduce the "wide range of purposes" for which the gong is used.