What is the main idea of the news item？A．Stricter security restrictions were imposed on lu
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What is the main idea of the news item？
A．Stricter security restrictions were imposed on luggage.
B．Luggage delivery services offer travelers convenience.
C．New services caused a lot of trouble in checking luggage.
D．Airlines give travelers opportunities to fly first class.
请帮忙给出正确答案和分析，谢谢！
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正确答案：B
主旨大意题。新闻开头部分的bypassthehasslesofcheckingbags表明，新的行李托运服务可免去乘客机场安检的诸多麻烦；后面提到的asheadache-freeaspossible也说明新服务可减少航空旅行的烦恼，另外新闻从各方面介绍新服务为旅客带来的便利，因此B正确。