如果时间数列环比增长速度大体相等时,可配合( )。
A. 上升直线
B. 抛物线
C. 指数曲线
D. 下降直线
下面哪种方法不适合对平稳序列的预测( )。
A. 简单平均法
B. 指数平滑法
C. 移动平均法
D. 线性模型法
2 FOB is the classic maritime trade term; the seller must load the goods on board the ship nominated by the buyer. Cost and risk is divided at ship’s rail. The seller must clear the goods for export.
A. 对
B. 错
3 FOB, CIF and CFR are suitable for maritime transport only.
A. 对
B. 错