As a result, the visible trade surplus rose sharply from US

As a result, the visible trade surplus rose sharply from US $1.4 billion in 1981 to US $4.4 billion in 1982 and US $3.7 billion in 1983.  (  )
A、import
B、export
C、excess
D、saving
【正确答案】：C
【题目解析】：surplus本意为过剩、剩余，盈余；import进口；export出口；excess过多，超过；saving储蓄。