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【单选题】
入院检查后,决定先采用非手术治疗,以下护理措施中哪错误的A.
穿弹力袜
B.
避免交叉双腿就坐
C.
避免久站
D.
保持大便通畅
E.
可以长时间坐着休息
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举一反三
【单选题】Resale Price Maintenance is the name used when a retailer is compelled to sell at a price fixed by the manufacturer instead of choosing for himself how much to add on to the wholesale price he pays fo...
A.
retailers may eventually stop selling their products
B.
it may reduce customers'confidence in their products
C.
customers may feel uneasy when prices vary
D.
it may sometimes lead to poor service
【单选题】When demand is unit elastic price elasticity
A.
exactly equals 1 and total revenue does not change when price changes.
B.
exactly equals 1 and total revenue and price move in opposite directions.
C.
exactly equals 1 and total revenue and price move in the same direction.
D.
approaches infinity and total revenue does not change when price changes.
【简答题】When will the price be quoted? After your selection is______.
【简答题】现在有个乒乓球，18个乒乓球盒，每个盒子里最多可以放6只乒乓球，至少有几个乒乓球盒子里的乒乓球数目相同．
【单选题】When a price floor is above the equilibrium price,
A.
quantity demanded will exceed quantity supplied.
B.
quantity supplied will exceed quantity demanded.
C.
the market will be in equilibrium.
D.
This is a trick question because price floors generally exist below the equilibrium price.
【单选题】商店里有7种乒乓球拍，7种乒乓球和3种乒乓球网出售，马小林要买一块乒乓球拍、一盒乒乓球和l张乒乓球网，他有几种选择的方法（ ）
A.
17
B.
147
C.
lO
D.
21
【简答题】一只乒乓球重4克，50只乒乓球重______克，100只乒乓球重______克．
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