+ FULL SET OF CLEAN ‘ON BOARD’ OCEAN BILLS OF LADING MADE OUT TO ORDER BLANK ENDORSED MARKED FREIGHT PREPAIDAND NOTIFY APPLICANT AND E. AGNEL E CO. SRL 这份提单的性质（ ） A: 清洁提单 B: 记名提单 C: 指示提单 D: 已装船提单