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【单选题】
有关婴儿期保健,以下叙述哪一项是错误的A.
生后第1死亡率最高
B.
婴儿死亡中，1/3死后28天内
C.
死因中以畸形，早产，重度缺氧缺血性脑病占首位
D.
新生儿保健特别强调护理
E.
婴儿期需要有计划地接收预防接种
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反馈参考答案：
举一反三
【判断题】What does knowing a word involve? Knowing a word means knowing its pronunciation and stress; Knowing a word means knowing its spelling and grammatical properties; Knowing a word means knowing its orig...
A.
正确
B.
错误
【判断题】What does knowing a word involve?Knowing a word means knowing its pronunciation and stress;Knowing a word means knowing its spelling and grammatical properties;Knowing a word means knowing its ts orig...
A.
正确
B.
错误
【简答题】What does knowing a word involve? Knowing a word means knowing its _____ and _____ ; Knowing a word means knowing its _____ and _____ ; Knowing a word means knowing its _____ ;
【单选题】数据模型指的是数据库的组织形式。数据模型的三要素是 ______。
A.
数据库文件、二维表、记录
B.
字段、类型、宽度
C.
数据结构、数据操作、数据完整性约束
D.
数据定义、数据存储、数据通信
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