为使分层浇筑的上下层砼密实粘结,应把振捣器插入下层(刚浇的)砼内深度不少于50㎜。()
参考答案:对
球团法是瑞典人安德森在()年提出的。
A.1921
B.1922
C.1912
D.1918
The earnings multiplier model, derived from the dividend discount model, expresses a stock's P/E ratio (P0/E1) as the:
A. expected dividend in one year divided by the difference between the required return on equity and the expected dividend growth rate.B. expected dividend payout ratio divided by the sum of the expected dividend growth rate and the required return on equity.C. expected dividend payout ratio divided by the difference between the required return on equity and the expected dividend growth rate.