气压强一定时,未饱和气块随着温度升高,其实际水汽压将()、饱和水汽压将()。
A、降低;降低
B、不变;升高
C、不变;降低
D、升高;升高
参考答案:B
If the price elasticity of demand for a good is 4.0, then a 10 percent increase in price would result in a:()
A. 4% decrease in the quantity demanded.
B. 10% decrease in the quantity demanded.
C. 40% decrease in the quantity demanded.
乘务车组在值乘中,要随时注意防火安全,机房内禁止吸烟;烟头、火柴杆要(),投入烟灰缸内。