According to the DLVO theory, if electrolyte (coagulant) is dosed, concentration of ions having same charge with the counter-ions would _____; the electric double layer would be compressed; zeta potential _____; stability _____; thus, colloid coagulation would occur. A: decrease; decrease; decrease B: increase; decrease; decrease C: increase; decrease; increase D: increase; increase; increase

The purchase of office supplies on account will: （ ）. A: Increase an asset and decrease a liability B: Increase one asset and decrease another asset C: Increase an asset and increase a liability D: Decrease an asset and decrease a liability

When carrier-based aircraft take off from a carrier, its lift will . A: increase suddenly B: decrease suddenly C: remain unchanged D: increase then decrease

Which of the following would cause price to decrease? A: A、a decrease in supply B: B、an increase in demand C: C、a surplus of the good D: D、a shortage of the good

If a small country imposes a tariff on imported motorcycles ( ) A: the surplus of the domestic producers of motorcycles will decline, but the surplus of the domestic consumers will increase. B: the surplus of both the domestic producers and consumers of motorcycles will decline. C: the surplus of both the domestic producers and consumers of motorcycles will increase. D: the surplus of the domestic producers of motorcycles will increase, but the surplus of the domestic consumers will decline.