Speculators profited handsomely since the price 【fluctuated】 from the 1990s.
A.was stable B.was flexible C.was volatile D.was regular正确答案C
Speculators profited handsomely since the price 【fluctuated】 from the 1990s.
A.was stable B.was flexible C.was volatile D.was regular正确答案C
