The only contents of a parcel are 25 photographs and 30 negatives. What is the total weight, in ounces, of the parcel’s contents ?()
(1)The weight of each photograph is 3 times the weight of each negative.
(2)The total weight of 1 of the photographs and 2 of the negatives is Ounce.
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.