胃火上逆，腑气不通，痞满便秘，方选E．

A. reflect changes in the purchasing power of one currency relative to the rest of the world
B. indicate changes in the prices of goods produced in one country relative to the rest of the world
C. are positive if domestic prices in one country are climbing relative to those in the rest of the world
D. can be caused by changes in either the domestic price index or the price index of goods produced and traded across the rest of the world
E. all of the above