参考答案

Similarities:
(1) All are symbolic delivery, and the corresponding contracts are shipment contracts.
(2) The seller is responsible for export clearance, and the buyer is responsible for import clearance.
Differences:
(1) FCA, CPT and CIP are suitable for all modes of transportation, including rail, road, air, sea, inland waterway and multimodal transport. FOB, CFR and CIF can be used only for sea or inland waterway transport.
(2) Under FCA, CPT and CIP, the risks transfer when the goods are delivered to the carrier; under FOB, CFR and CIF, the risks transfer on the ship's rail at the named port of shipment.
(3) Under FCA, CPT and CIP, the carrier is responsible for loading and unloading, and there are no variations; under FOB, CFR and CIF, there are variations as to the loading and unloading expenses.