下列现象中，不属于旋转现象的是[ ] A．钟摆的运动 B．大_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题选择题

下列现象中，不属于旋转现象的是[ ]

A．钟摆的运动

B．大风车转动

C．电梯的升降

答案

答案：C

问答题

Part 2

·Suppose there is a kindergarten in .your hometown and you are asked to write a copy for it. You have to provide information on the special features of it:
☆ The location is beside the quiet, and beautiful park.
☆ The commuting is convenient.
☆ The facilities are enough.
☆ The service is fine.
☆ The fee for it is ￥2000 per year.

填空题

治疗效果的准确度就是可信的程度，常用95%可信区间（95%CI，confidenceinterval）来表示，可信区间越小，则可信度就越（）真值。