【简答题】在线性结构中,第一个结点 1 前驱结点,其余每个结点有且只有1个前驱结点;最后一个结点 2 后继结点,其余每个结点有且只有1个后继结点。
【判断题】高速工况下,多缸机间的进排气干涉现象会更明显些。
【简答题】理想的流动比率为 ;理想的速动比率为 ;理想的现金比率为 。理想的资产负债率为 ;理想的产权比率为 ;利息费用保障倍数理想标准为 倍。
【单选题】Price elasticity of demand is defined as:
A.
the slope of the demand curve.
B.
the slope of the demand curve divided by the price.
C.
the percentage change in price divided by the percentage change in quantity demanded.
D.
the percentage change in quantity demanded divided by the percentage change in price.
【简答题】电法勘探是以地壳中岩矿石间的()为基础,通过观测和研究()进行地质勘探、找矿等的一种物探方法。
【单选题】Demand is said to be price elastic if_________.
A.
demand shifts substantially when income or the expected future price of the good changes
B.
buyers do not respond much to changes in the price of the good
C.
buyers respond substantially to changes in the price of the good
D.
the price of the good responds substantially to changes in demand