以下这些数值可用于表示相关系数的是（）

[单选题]发展理论中，认为心理发展是量变的心理学家是（）

[单选题]下列不属于等音程的是（）。

[单选题]以下哪种文件格式不属于音频文件？（）

[单选题]各部门在申请制定新文件时，需填写（）。

[填空题]隧道衬砌及洞门选用的混凝土的抗渗等级不应低于（）。

[单选题]2个月婴儿，患有先心病。气促2天，伴轻咳嗽，无发热。查体：呼吸65次／分，无发绀，两肺闻及细湿啰音，心率170次／分，心音低钝，胸骨左缘2～3肋间闻及Ⅳ级收缩期杂音，伴有震颤，肝脏肋下4cm，剑突下4cm。X线胸片示心胸比率0.60，左心室增大，肺纹理增多，叶间胸膜明显。该患儿在治疗中突然出现气促加重、呼吸困难，发绀，面色苍白，心率增快达180次／分，两肺闻及细湿啰音和哮鸣音。最可能的诊断为（）

[多选题]画面的垂直角度包括（）.

[问答题]设计任务：请阅读下面学生信息和语言素材，设计20分钟的英语阅读教学方案。教案没有固定格式，但须包含下列要点：●teaching objectives●teaching contents●key and difficult points●major steps and time allocation●activities and justifications教学时间：20分钟学生概况：某城镇普通高中二年级（第一学期）学生，班级人数40人，多数学生已经达到《普通高中英语课程标准（实验）》七级水平。学生课堂参与积极性一般。语言素材：Business Motorola set out a special training plan programme for children last week with the aim of developing children's business skills and preparing them for a future as entrepreneurs.Eighty-seven children aged between 12 and 16 from Beijing and Tianjin attended the one-week training programme called Youth Discovery directed by Motorola University's(MU) instructors and marketing specialists. The children learned about dealing with a practical problem-marketing and worked out a marketing plan by themselves. Last week 26 children of Motorola employees in Tianjin completed their training in the MU-Tianjin Learning Center.Through the training programme, children learnt how to get information through different kinds of sources, determine end-user needs, make up messages of value to customers, and communicate using various means and equipment.Educators acted only as team directors, providing children to discover their own answers. The  children gave their solutions to Motorola's management and their parents on the last day of the programme.The children, most of whom were primary and middle school students, presented themselves freely. The students said that they preferred the open and practical way of learning.Youth Discovery, started by Motorola's former president Robert Galvin, designed and carried out by Motorola University, aimed to bring the talents of young people into full play and encouraged them to discover how their skills can contribute to a team to help it reach an aim.

[多选题]下列国家将权责发生制应用到预算管理上的有()

[填空题]如在两根不同的金属丝之间串联进另一种金属，只要串联金属两端的温度相同，则回路中产生的总热电势只与原有的两种金属的性质有关，而与串联入的中间金属无关，这称为（）

[多选题]以下这些数值可用于表示相关系数的是（）

[多选题]以下如此数值可用于表示相关系数（）

[多选题]相关系数r的数值（　　）。

[多选题]相关系数r的数值（　　）。

[多选题]相关系数r的数值()。

[多选题]下列有关相关系数数值大小的叙述中正确的有（　　）。

[多选题]下列有关相关系数数值大小的叙述中正确的有（　　）。

[单选题]如果相关系数的数值为-0.78，这种相关关系属于（）

[多选题]下列有关相关系数数值大小的叙述中正确的有()。

[判断题]相关系数r数值越大，越接近1表明x与y之间相关相关程度越高，数值越小，相关程度越低。