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