43. How many mL of 15 M HNO3 are needed to make 500 mL of a 2 M solution?
(A) 0.015
(B) 0.03
(C) 33.3
(D) 66.7
(E) 15

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統計： A(0), B(2), C(1), D(17), E(1) #2241216