1.
The survey on the nutrition and health status of primary and secondary school students aged 7-12 in Tangshan city;
唐山市1762名7-12岁小学生营养及体质状况调查
2.
A Study on the Situation of Sleep-disordered Breathing a and Its Influencing Factors in Children Aged 7-13 Years
7-12岁学龄儿童睡眠呼吸障碍及其相关因素调查
3.
Investigation on Skeletal Development of Obese Children Aged 7-12
7～12岁肥胖儿童骨骼发育的观察
4.
DEVELOPMENT OF VISUAL SEARCH ABILITY OF CHILDREN AGED FROM 7- TO 12- YEAR OLD;
7～12岁儿童视觉搜索能力的发展
5.
Normal Value of Pulmonary Ventritative Function of Children Aged 7-12 Years in Chongqing
重庆市7～12岁儿童肺通气功能正常值的探讨
6.
Risk Factor Analysis of Attention Deficit Disorder with Hyperactivity in Children Aged 7-12
7～12岁儿童注意缺陷伴多动症危险因素调查
7.
The Research on Gender Difference of Children s Movement Coordination Ability between 7～12 Years Old;
7～12岁儿童动作协调能力性别差异的研究
8.
A Study Judgment System of 7-12s Children Coordinating Ability of Movement;
7—12岁儿童动作协调能力测量评价系统的研究
9.
Analysis and Research on the Testing Result of 7-12 Years Children s motor Coordination;
7—12岁儿童动作协调能力测试结果的分析研究
10.
A Longitudinal Study of 5 Cephalometric Plane Angles in Female Children from 7 to 12 Years Old
7～12岁女性儿童5个头影测量平面角度变化的纵向研究
11.
A STUDY ON THE DEVELOPMENT OF NUMBER CONCEPTS AND OPERATIONAL ABILITIES OF 7-12 YEARS OLD IN 10 DISTRICTS IN CHINA
国内十个地区7—12岁儿童数学概念和运算能力发展的初步研究
12.
VB_(12) Nutritional Status in Children Aged 2～7 and Oral Therapies in Children with VB_(12) Deficiency;
2～7岁儿童血清维生素B_（12）营养状况调查及口服干预研究
13.
A survey on vitamin B_(12) nutritional status of children at the age of 2 to 7 years in 4 cities in China
中国4城市2～7岁分析人群维生素B_(12)营养状况流行病学调查
14.
Marie Claire, age 12
玛丽?克莱尔，12岁
15.
Suitble for 12 years and over.
适合12岁或者12岁以上的孩子观看。
16.
Children under 12 rare half price.
12 岁以下儿童半价。
17.
Although his formal education came to an early end, he became the most famous writer of America.
马克?吐温上学到12岁。
18.
Children enter primary school at the age of 7.
孩子们7岁进小学。