问题
单项选择题
测量误差按其对测量结果影响的性质，可分为（）。
A.瞄准误差和读数误差
B.偶然误差和系统误差
C.对中误差和整平误差
D.读数误差和计算误差
答案
参考答案：B
解析：偶然误差和系统误差
搜题请搜索小程序“爱下问搜题”
测量误差按其对测量结果影响的性质，可分为（）。
A.瞄准误差和读数误差
B.偶然误差和系统误差
C.对中误差和整平误差
D.读数误差和计算误差
参考答案：B
解析：偶然误差和系统误差
Working as volunteers at a summer camp is not easy. _____, when I have become a ____, I think it’s great fun.
During the summer camp, there are a number of _______, They want to _____ time with their kids in nature, hoping to take a rest from the busy life.
From the moment they arrive, these parents can be seen ______, working so hard to help others in the community _______ doing the dishes, taking kids to see the doctor, buying things, sweeping around the rooms and spending time taking _______ in all kinds of activities. They are full of energy to be _____ to do so much work. At the end of the camp, it is so _____ to say goodbye to each other. I really thank them. They are always giving and never _____ anything in return(作为报答). Thank you, summer camp parents.
| 小题1: | A．However B．So C．And D．Because |
| 小题2: | A．teacher B．volunteer C．member D．organizer |
| 小题3: | A．workers B．students C．parents D．doctors |
| 小题4: | A．have B．spend C．give D．take |
| 小题5: | A．somewhere B．anywhere C．everywhere D．anyone |
| 小题6: | A．by B．in C．with D．at |
| 小题7: | A．area B．things C．care D．part |
| 小题8: | A．able B．true C．interested D．crazy |
| 小题9: | A．boring B．hard C．happy D．easy |
| 小题10: | A．looking on B．looking up C．looking at D．looking for |