【简答题】试估算下列单次测量的不确定度:1. 用最小刻度为1mm的直尺测量桌子宽度时不确定度为 ;2. 用50分度的游标卡尺测量金属杆直径时不确定度为 ;3. 用精度等级为0.2级,量程为50μA的电流表测量某一电流值时不确定度为 。
【判断题】A split-and-mix method reduces the number of containers required in a parallel synthetic method, thus raises the number of compounds that can be made into the millions.
【单选题】读数值(精度)为0.02mm的游标卡尺,游标50格刻线宽度与尺身( )格线宽度相等。
【单选题】This is most probably a/an ______: Use automatic audio processing algorithms to detect speech in the audio and split speech into short, easy to transcribe segments. Then load sequences speech segments...
A.
instruction on a research method
B.
general description of a method
C.
narration of a specific method adopted
【单选题】In the split method, if no separator is specified, the default is ____________.
C.
any whitespace character
【单选题】读数值(精度)为0.02mm的游标卡尺,游标( )格刻线宽度与尺身49格宽度相等。
【单选题】你根据销售额为2000美元的估算花1000美元盖了一个热狗店。热狗店快建完了,但你现在估计总销售额只有800美元。你可以在花300美元盖完热狗店。你应该盖完热狗店吗?(假设你没有热狗店的成本)
【单选题】Chan created a composite measurement to determine how likely a child is to engage in delinquency from the age of 10 to 14. She tests the reliability for this instrument by performing a pilot study in ...
C.
using established measures
D.
reverse-verification method