【单选题】选择一个恰当的选项将英文句子补充完整。 Due to differences in Customs clearing times between the individual countries, ( )cannot be guaranteed on all international shipments.”
【判断题】Individual countries have developed their own regulatory systems regarding GMOs, with the most marked differences occurring between the USA and Europe.
【单选题】选择一个选项将该句补充完整:Due to differences in customs clearing times between the individual countries, _____cannot be guaranteed on all international shipments. ( )