If the money supply increases and the price level declines, according to the quantity theory of money, velocity:（）

A. declined and output rise, or velocity rise and output remained constant.

B. remained constant and the growth rate in output fell more than enough to compensate for the decline in prices.

C. declined and output rise; or velocity remained constant and the growth rate in output rose more than enough to compensate for the decline in prices.

只供黏膜止痒或烧伤止痛的药物是（）

A.地布卡因

B.普鲁卡因

C.利多卡因

D.丁卡因

E.苯佐卡因