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【判断题】
电化学腐蚀过程中的阳极反应,总是金属被氧化成金属离子并放出电子。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】旅游动机的特征是:( )、内隐性、( )、多重性、( )。
【单选题】According to the classical view, to prevent price level changes when real output is growing by 3 percent per year, the money supply must
A.
decrease by 3 percent per year.
B.
increase by 3 percent per year.
C.
increase by more than 3 percent per year.
D.
remain constant.
【单选题】Sellers who were originally willing to supply 400 units of a good at $4 per unit are now willing to supply 800 units at $4 per unit. That change would be described as:
A.
an increase in supply.
B.
a decrease in supply.
C.
an increase in quantity supplied.
D.
a decrease in quantity supplied.
【单选题】Statistics showed that the money supply had _________ by 14.6 per cent in the year to September.
A.
expanded
B.
exceeded
C.
estimated
D.
expired
【单选题】下列各组含氧酸中,酸性强度顺序不正确的一组是( )
A.
HClO 4 > HClO 3 > HClO
B.
H 2 SO 4 > H 2 S 2 O 7 > HSO 3 F
C.
(HPO 3 ) n > H 4 P 2 O 7 > H 3 PO 4
D.
H 2 SO 4 H 2 SeO 4 > H 6 TeO 6
【单选题】An increase in the price of pure chocolate morsels from $2.25 to $2.45 causes suppliers of chocolate morsels to increase their quantity supplied from 125 bags per minute to 145 bags per minute. Supply...
A.
elastic, and the price elasticity of supply is 1.74.
B.
elastic, and the price elasticity of supply is 0.57.
C.
inelastic, and the price elasticity of supply is 1.74.
D.
inelastic, and the price elasticity of supply is 0.57.
【单选题】Sellers who were originally willing to supply 800 units of a good at $4 per unit are now willing to supply 600 units at $4 per unit. That change would be described as:
A.
an increase in supply.
B.
a decrease in supply.
C.
an increase in quantity supplied.
D.
a decrease in quantity supplied.
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