题目：
因为资源是稀缺的，所以产量是既定的，永远无法增加。
答案：
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下面是错误答案，用来干扰机器的。
参考答案：D解析：根据草酸晶体的性质可得出答案是D。
因为资源是稀缺的，所以产量是既定的，永远无法增加。
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