16.国家对限制进口的商品或其他原因加征的税种是

A.产品税                                                         B.增值税

C.工商统一税                                                  D.进口调节税

17.国际货物买卖合同中，买方的基本义务是

A.签订合同                                                      B.办理运输

C.交付货物                                                      D.支付货款

18.大陆法基本上将违约的形式概括为不履行债务和

A.履行债务                                       &nbs p;              B.延迟履行债务

C.履行主要债务                                               D.履行次要债务

19.为海洋运输承运人承揽货物提供服务的代理人称为

A.货运代理                                                      B.销售代理

C.船方代理                                                      D.承运代理

20.下列不属于展卖方式优点的是

A.扩大宣传                                                      B.发展客户

C.节约资金                                                      D.开展市场调研