【判断题】“八荣八耻”是新时期社会主义道德的精辟概括。
【判断题】“八荣八耻”是新时期社会主义道德的精辟概括。
【判断题】一般位置平面的投影特性是:三个投影均成平面图形,比实际形状小,不反应实形。
【单选题】Suppose you find $20. If you choose to use the $20 to go to the football game, your opportunity cost of going to the game is
A.
nothing, because you found the money.
B.
$20 (because you could have used the $20 to buy other things).
C.
$20 (because you could have used the $20 to buy other things) plus the value of your time spent at the game.
D.
$20 (because you could have used the $20 to buy other things) plus the value of your time spent at the game, plus the cost of the dinner you purchased at the game.
【单选题】一个平面的三个投影中一个投影反应实形,则该平面为()
【单选题】KTV对不同的时段制定不同价格,这种定价策略是( )。