单选题
Somebody bought some pencils and rubbers in a shop. What's the price for each pencil?
(1)he paid 215 cents for 2 pencils and 3rubbers
(2)he should have bought 8 pencils and12 rubbers if he paid 860 cents.
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、
(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.
【正确答案】
E
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