Given: Which two methods, inserted independently at line 17, correctly complete the Sales class?() ["double getSalesAmount() { return 1230.45; }","public double getSalesAmount() { return 1230.45; }","private double getSalesAmount() { return 1230.45; }","protected double getSalesAmount() { return 1230.45; }"]
社会角色根据追求的目标可以归结为() ["功利性角色","表现性角色","规定性角色","开放性角色","自致角色"]
女性,30岁,产后3d出现畏寒、发热,左侧乳房胀痛。体检:左侧乳房皮肤红肿明显,局部扪及一压痛硬块,同侧腋窝淋巴结肿大、触痛。预防该病的关键在于() ["防止乳房皮肤破损","保持乳房皮肤清洁","预防性使用抗生素","避免乳汁淤积","减少母乳喂养时间"]
CSS样式可以应用在()网页对象中。 ["文本","表格","超链接","列表项"]
超级链接样式的定义包括对()状态的定义。 ["link","visited","hover","active"]
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