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【单选题】
某一种商品的价格为5,销售量为4件,价格为5,需求下降为3件,则这种商品的需求的价格弹性为( )。A.
1
B.
/2
C.
/5
D.
4/3
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皮皮学刷刷变学霸
举一反三
【简答题】写出程序运行结果。 #include main( ) {int i,j; for (i=1;i<5;i++) for (j=2;j<=i;j++) putchar('#'); }
【简答题】完形填空。 Tom __ 1 __ a very good student, and he __ 2 __ doing homework, because he liked __ 3 __ other things in his free time. Usually he didn’t do __ 4 __ homework, and when he did it, he always made ...
【单选题】In fact Tom _______．
A.
liked glasses
B.
went to the wrong shop
C.
couldn't read at all
D.
knew the man in the shop
【简答题】使用关键字 来定义接口。
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