单项选择题
WTO ( World Trade Organization)()
A.世界贸易机构 B.世界贸易组织 C.世界期货交易机构 D.世界商业组织
单项选择题 ()is called standard container.
单项选择题 ()has three specific points: fixed line, fixed ports and announcing shipping time in advance.
单项选择题 ()can create added value.