缺省情况下，摄像机移动时以什么为基准？（）

A.以目标点为基准

B.以观察点为基准

C.以拍摄对象为基准

D.以焦点为基准

According to Incoterms 2000，which group of the following trade terms mean that the buyer must contract for the carriage of the goods to the named port(or place)of destination ( )

A．FOB、CIF、EXW

B．EXW、FCA、CFR

C．FCA、FAS、FOB

D．DAF、FAS、DES