【判断题】MTM指标也叫动量指标,是使用收盘价和成交量计算得出的。
【简答题】天然状态下的洪积扇中,由山口向平原地下水的水化学作用由_为主转化到以_
【判断题】按比例定员的方法只能给酒店餐饮部配员一个框架,具体配员时还应考虑餐饮部规模、不同岗位设备设施因素。( )
【单选题】In the balance of payments, the statistical discrepancy or error term is used to ( )
A.
Ensure that the sum of all debits matches the sum of all credits.
B.
Ensure that imports equal the value of exports.
C.
Obtain an accurate account of a balance-of-payments deficit.
D.
Obtain an accurate account of a balance-of-payments surplus.
【判断题】The key assumption for the general multiple regression model is that all factors in the unobserved error term be correlated with the explanatory variables.