题目:
E-R图一般用在数据库设计的 ______ 阶段。
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:Once the child is alert, he may have sips of clear liquids. Eating enhances the blood supply to the throat, which promotes rapid healing. However, the child should start with clear fluids.