下列哪些情况病人不宜单独外出活动A．年龄大于80岁 B．患脑血管_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

下列哪些情况病人不宜单独外出活动

A．年龄大于80岁

B．患脑血管疾病

C．患冠心病

D．患脊髓型颈椎病

E．患糖尿病

答案

参考答案：D

完形填空

This is a special class in a Chinese school. The students come from countries. Some come from America. come from Canada, Germany, Australia and England. They different languages, but all of can speak Chinese. They are good friends. They together, play together and live together. They help each other. All of the of this class are Chinese, but they can speak English, too. They help their students Chinese. They are very kind helpful. They work hard. All the students this class study Chinese cooking, so they can make delicious meals. All the students say that they are here. They also say China is a great country and the Chinese people are very friendly.

填空题

行星绕太阳的运动（公转）可以近似地看作匀速圆周运动．右表根据观测结果给出四个“内层行星”的公转周期，并给出质量为m=1kg的物体在各行星上所受到的重力大小G，由该表可知：

行星名称	周期T	m受的重力G
水星	88个地球日	3.72N
金星	225个地球日	8.92N
地球	365个地球日	9.80N
火星	687个地球日	3.72N

这四个行星中，______的公转角速度最大；______的重力加速度最大．