To: David Wallace<d_wallace@echo.net>
From: Barbara Smallwood<b_smallwood@echo.net>
Date: Monday, June 10th 20-- 08:42:17 A.M.
Subject: My schedule today
Dave,
I will be out of my office the (144) of the afternoon.
I will be in the south wing at a meeting from 1:30 until 3:00 and then I will be leaving for the day for an eye doctor's appointment. I did not finish double-checking the inventory numbers, but I left them with Margaret and she said she would get them done by 5:00 today. If you need me, do not (145) to call my cell phone: 333-4130.I will be checking e-mail (146) this evening as well.
See you tomorrow,
Barbara
(44)
A.rest
B.rests
C.rested
D.resting
第1题
A.只允许最末一位欠准确,而且只能上下差1
B.可采用四舍六入五成双规则修约
C.0不做为有效数字
D.在分析工作中实际能测量到的数字即为有效数字
E.0既可能为有效数字,也可能不为有效数字
第2题
A.只允许最末一位欠准确,而且只能上下差1
B.可采用四舍六人五成双规则修约
C.0不做为有效数字
D.在分析工作中实际能测量到的数字即为有效数字
E.0既可能为有效数字,也可能不为有效数字
第3题
根据四舍六入五成双的原则,64.705,37.735保留四位有效数字应为64.70,()。
第7题
对药品检验工作中测量的有效数字的要求是
A.只允许最末的一位差1
B.只允许最末一位欠佳
C.只允许最后一位差±1
D.只允许最后一位差0.3mg
E.只允许最后一位差2
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