为门（急）诊患者开具的麻醉药品注射剂每张处方为（） A.二日极量 B.一次常用量 C

订足率与上柜率指标通畅配合使用，用来判断市场需求的旺盛程度和市场对投放量的吸收潜力。

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.

根据《建筑基坑支护技术规程》4.9.11.5要求，水平支撑和挡土构件之间设置腰梁，钢腰梁在支撑点的间距不宜大于（）m。

A.3

B.4

C.5

D.6

下图为某常染色体遗传病的系谱图，请据图回答下列问题：

图甲中I2的基因型为（）（设显性基因为A）；图乙中Ⅲ3的基因型为（）（设显性基因为B）

烧结料中加入一定量的石灰石主要是为了提高产量。（）