With the increase of pressure altitude, . A: thrust increases, drag increases, thrust minus drag increases B: thrust decreases, drag decreases, thrust minus drag increases C: thrust decreases, drag decreases, thrust minus drag decreases D: thrust decreases, drag decreases, thrust minus drag does not change

After annealing treatment, the hardness of steel ____and the plasticity ____ () A: Decreases / increases B: Increases / decreases C: Is reduced / decreases D: Raises/ is improved

Ifthewageexceedsthevalueofthemarginalproductoflabor,thenhiringanotherworker? increases;the;firm's;profit.|decreases;the;firm's;total;cost.|decreases;the;firm's;total;revenue.|decreases;the;firm’s;profit.

If the equilibrium price of a good decreases and the equilibrium quantity of the good decreases, we can conclude that

When the interest rate falls in the money market, the quantity of money demanded ________ and the quantity of money supplied ________. A: increases; decreases B: decreases; increases C: stays the same; decreases D: increases; stays the same

温度随着海拔（高度） 的升高而降低。 A: The temperature decreases in relation to the altitude. B: The temperature decreases in proportion to the altitude.

Good A and good B are substitutes in production. The demand for good A decreases, which lowers the price of good A. The decrease in the price of good A ( ) A: decreases the supply of good B: increases the supply of good C: decreases the demand for good D: increases the demand for good

If average variable cost decreases as output increases, then:

Half-life is the time for the concentration of a reactant decreases by half.

Tax increases and decreases are a form of fiscal policy.