高瓦斯矿井采掘工作面瓦斯浓度检查次数每班至少()
A、1次
B、2次
C、3次
D、4次
参考答案:C
With respect to behavioral finance, the tendency to place too much faith in an earnings forecast is known as:()
A. confirmation bias.
B. overconfidence bias.
C. escalation bias.
公路与海运之间的运输不是国际多式联运。()