A-A+ Alternative sources of protein must be found w 2022-08-05 15:48:19 问答库 阅读 169 次 问题详情 Alternative sources of protein must be found when meat and fish are not available.A．NewB．Less expensiveC．MoreD．Other 参考答案 正确答案：D解析：alternative与other同义，意为“其它的”。
