问题
单项选择题
某双代号时标网络图计划如下图，该计划执行到第6天末时的实际进度如前锋线所示，则下列结论不正确的是（）。
A．E对后续工作及总工期均无影响
B．C拖后一天，造成工期延长一天
C．D拖后两天，但对后续工作及总工期均无影响
D．C拖后一天，但不影响其后续工作F、G、H、I的正常进行
答案
参考答案：D
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某双代号时标网络图计划如下图，该计划执行到第6天末时的实际进度如前锋线所示，则下列结论不正确的是（）。
A．E对后续工作及总工期均无影响
B．C拖后一天，造成工期延长一天
C．D拖后两天，但对后续工作及总工期均无影响
D．C拖后一天，但不影响其后续工作F、G、H、I的正常进行
参考答案：D
Packing too many things is one of the fastest ways to make your trip less enjoyable. When you leave, it always seems like you’re going to need every item(物品)in your suitcase. when you finish your journey, you may haven’t been worn once. Unless you can a porter(行李)everywhere you go, all of those extra items are going to weigh you down. Here are on how to pack for vacation and make your trip a pleasure. Choose a wheeled suitcase and a small backpack. The wheeled saves(避免)you from carrying heavy baggage. The small backpack lets you keep items close. Put your necessary travel items in the backpack. They things like money, medicine and a mobile phone. If you have space, add some items as well as a book, a snack and sunglasses. Bring less. You’ll have to carry your bags airports, train stations and city streets, so you don’t want to pack more items than necessary. Leave home any items you may not need during your trip. Don’t your suitcase. You are sure to buy at least a few souvenirs during your trip, and leaving space for them in your suitcase will reduce your travel stress.
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