循环经济的 “3R原则”中的“3R”取自下列（ ）英语词组的每个词的手写字母。 A: Rethinking；Repairing；Renovation ； B: Reduce；Reuse；Recycle ； C: Readjusting ；Reconstructing；Reckoning； D: repairing；Reproducing；Recovery；

Which of the following is NOT a way in which a central bank can conduct its monetary policy? A: by establishing target interest rates and then undertaking open market operations to maintain them B: by buying and selling government bonds C: by making small policy changes and readjusting policies as needed D: by changing the rate of capital accumulation to influence aggregate supply E: by changing interest rates to influence spending on durable goods and investment