题目:
If the price of potatoes is $0.20 per pound, what is the maximum number of potatoes that can be bought for $1.00 ?()
(1)The price of a bag of potatoes is $2.80.
(2)There are 15 to 18 potatoes in every 5 pounds.
A.条件(1)充分,但条件(2)不充分.
B.条件(2)充分,但条件(1)不充分.
C.条件(1)和(2)单独都不充分,但条件(1)和条件(2)联合起来充分.
D.条件(1)充分,条件(2)也充分.
E.条件(1)和条件(2)单独都不充分,条件(1)和条件(2)联合起来也不充分.
答案:
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参考答案:C,D解析:[知识点] 粉体学简介