单选题
发布日期:2021-03-22
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全脂奶粉调制成乳汁,奶粉与水的重量比应为( )。
国际收支平衡,是指国际收支差额除以一个相对合理的范围,即()
必须戴供气式面罩是因为空气中的氧含量低于()。
一般的组织结构形式有哪些?
克罗恩(Crohn)病后期的肠外表现有哪些()
男性,30岁,全身乏力、低热、伴左上腹肿块半年。肝肋下2cm,脾肋下7cm。化验:血红蛋白80g/L,白细胞140×109/L,血小板100×109/L,骨髓象原始粒细胞0.02,PH1染色体阳性。正确的治疗为( )。
在母乳喂养健康教育项目中,实现母乳喂养行为的促成因素是()。
射线照像的主要优点是可检测工件内部缺陷的大小、深度。
法律规范的效力包括()
营业部门在封发时应在相应的封发清单备注栏内对保价包裹邮件按件标注()符号。
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