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【单选题】
以下能正确定义变量a, b和c并为它们赋值的语句是( ）。A.
int a=5; b=5; c=5;
B.
int a,b,c=5;
C.
a=5,b=5,c=5;
D.
int a=5, b=5, c=5;
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举一反三
【单选题】If a substitute good is easy to find, then demand for a good is
A.
elastic.
B.
inelastic.
C.
unit elastic.
D.
perfectly inelastic.
E.
Substitutes don't have any effect on elasticity.
【单选题】The demand for a good is elastic if
A.
an increase in its price results in an increase in total revenue.
B.
a decrease in its price results in a decrease in total revenue.
C.
an increase in its price results in a decrease in total revenue.
D.
the good is a necessity.