That Arizona s economic prospect has greatly improved can be shown from the following facts EXCEPT______.
A. Unemployment rate fell to 7.8% in May
B. It is estimated that the fast job growth will be at 6% next year
C. Household incomes growth will be at 3.6% annually through 2017 due to more jobs
D. Employment growth is expected to expand at 4.6% annually by Moody"s Analytics
通过观察累积成本曲线,项目经理能监控()
A BCWS
B CV
C SV
D CPI
Which instrument is used to measure the relative humidity of the air ().
A hydrometer
B. A hygrometer
C. A spectrometer
D. A barograph