问题
问答题
一个同学用同一把刻度尺先后四次测量同一物体的长度：L1=2.45cm，L2=2.46cm，L3=2.47cm，L4=2.48cm，那么物体的长度大约是______cm．
答案
物体的长度为L=
=L1+L2+L3+L4 4
=2.465cm≈2.47cm．2.45cm+2.46cm+2.47cm+2.48cm 4
故答案为：2.47．
搜题请搜索小程序“爱下问搜题”
一个同学用同一把刻度尺先后四次测量同一物体的长度：L1=2.45cm，L2=2.46cm，L3=2.47cm，L4=2.48cm，那么物体的长度大约是______cm．
物体的长度为L=
=L1+L2+L3+L4 4
=2.465cm≈2.47cm．2.45cm+2.46cm+2.47cm+2.48cm 4
故答案为：2.47．
CONVERSATION 2 (Questions 5-8)
| Booking Theatre Tickets |
| The speaker is a driving instuctor over (5) \r\n (6) instructor. Learning, from a private instructor is (7) than going to a big school. But at the moment the speaker is fully booked and his prices are quite (8) |