Determine whether the statements are true or falsePut T for true or F for false in the table

16. Whether sale by buyers sample or buy sellers sample. The quality of the commodities should be strictly the same as the sample. Otherwise it should be stipulated in the contract clearly.

17. The fluctuations of exchange rates may influence the interests of both exporter and importer.

18. Commission refers to service fee while discount is a certain percent of price reduction.

19. If the seller agrees to deliver the goods to the ship, but not to pay for loading them, the term is FOB.

20. The DDP should not be used if the seller is unable to obtain import lessons directly or indirectly.

21. Under CFR, the seller must pay the usual freight rate and any additional costs .

22. The D terms are arrival contracts while the C terms evidence, departure shipment contract.

23. Multimodal transport means the goods are carried by at least two modes of transport under at least two multimodal transport operators.

24. For terms marked with "W/M", the freight is to be calculated on the basis of weight ton or measurement ton, subject to the higher rate.

25. The premium charged for the insurance policy is calculated according to the risks involved.