皮皮学，免费搜题
登录
搜题
【单选题】
某边长丈量若干次,计算得到平均长为200m,平均值的中误差为0.05m,则该边长的相对误差为)。A.
0.25
B.
0.025
C.
1/8000
D.
1/4000
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】图4-5所示电路中凸轮控制器的触点12用作________保护。
【简答题】I fell in love with England because it was quaint (典雅)—all those little houses, looking terribly old-fashioned but nice, like dolls’ houses. I loved the countryside and the pubs, and I loved London. ...
【单选题】Terri: Derrick, don't you think you should take a vacation? Even one or two days would be fine. Derrick:__________ There's too much work.
A.
I think so.
B.
No way.
C.
Count on me.
D.
You don't know.
【单选题】某休克病人进行扩容疗法快速输液时,监测得中心静脉压1.47kPa(15cmH20),血压10.7/8kPa(80/60mmHg),应采取的措施是:
A.
大量输液加快速度
B.
控制速度，减慢输液
C.
减慢输液加用强心药
D.
暂停输液
E.
用升压药
相关题目：
参考解析：
知识点：
题目纠错 0
发布
