Their height, level of maturity, their interests, as well as their need to play and travel safely to school, mean that they require special safety measures.
他们的身高、成熟程度、兴趣以及玩耍和安全到校的需要，意味着需要对他们采取特别的安全措施。
2
The results were summarized as below. Firstly, the middle school students'career maturity inventory used in this paper has good reliability and validity.
结果显示：本论文所使用的中学生生涯成熟度量表项目设置合理，具有较好的信度和效度；
3
CMM (Capability Maturity Model) is a set of standards to value software ability and mature degree that is researched by the software Engineering School of Carnegie Mellon University.