1.
Primary Culture of Lung Adenocarcinoma Cells and Different Oncogenicity in Vitro of Lung Adenocarcinoma Cells;
肺腺癌细胞的原代培养和肺腺癌细胞体外致瘤能力的差异性
2.
Gender Difference Research of Junior Middle School Student Geography Ability;
初中生地理空间能力的性别差异研究
3.
A Study of Differences in Cultivation of Creativity of the Students between China and USA;
中美学生创造能力培养的差异性研究
4.
On sexual differences in the ability of Einglish listening anticipation;
英语听力理解中预期能力的性别差异探析
5.
Studies on the Differences in Biological Characters of Seeds, Seedlings and Salt-tolerance of Melia Azedarach L. from Different Provenances;
不同种源苦楝种苗特性和耐盐能力差异的研究
6.
Study on Gender Differences of Visuospatial Ability of Chemical Learning in Senior High School;
高中生化学视觉空间能力的性别差异研究
7.
Research on the Effect the Countermeasure of Gender Difference on Middle School Students Ability for Mathematics;
性别差异对中学生数学能力的影响与对策研究
8.
The InvestigationaI Research about the Sexual Differences of the Middle School Students Mathematical Capacity;
中学生数学能力方面性别差异的调查研究
9.
The Gender Differences in Activity of Daily Living in Rural China;
农村老年人日常生活自理能力的性别差异研究
10.
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
11.
Sex Difference of Students Ability to Recognize Spatial Pattern;
中学生空间图形认知能力发展的性别差异研究
12.
A Comparative Study on Attention Sustaining between Male and Female Children;
7～11岁儿童持续注意能力的性别差异研究
13.
PRIMARY SCHOOL PUPILS GENDER DIFFERENCES IN SPECIAL ABILITIES;
小学生空间能力及其发展倾向的性别差异研究
14.
IMPLICIT THEORIES OF ACADEMIC SUBJECTS: GENERALITY AND AGE-RELATED DIFFERENCES;
学科能力内隐观的普遍性及其年龄差异
15.
Research on the Predictive Role, Developmental Characteristic and Cross-cultural Difference of Preschoolers' Self-imposed Delay of Gratification;
幼儿自我延迟满足能力的预期性、发展性及差异性研究
16.
NRF1 Genotype Predicting Exceptional Endurance Capacity on Chinese Males in North Parts of China;
NRF1基因多态性可预测中国北方地区汉族男性有氧能力的差异
17.
Life Cognitive Development: Its Separability and Individual Difference;
认知能力的毕生发展及其分离性和个体差异性研究
18.
Answer: The abilities of individual students.
答复：是因学生能力的差异造成的。