某施工企业投标时，提交了银行出具的投标保函。由于投标有效期结_爱下问搜题

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问题多项选择题

某施工企业投标时，提交了银行出具的投标保函。由于投标有效期结束后评标仍未结束，致使投标保函的有效期到期。下列关于该投标保函的说法中，正确的是（）。

A.银行应当自动延长投标保函的有效期

B.施工企业必须延长投标保函的有效期

C.招标人可以通知投标人延长投标保函的有效期

D.施工企业可以拒绝延长投标保函的有效期

E.招标人退还投标人投标保函继续评标

答案

参考答案：C, D

阅读理解

FLIGHT INFORMATION

Date	From	To	Departure	Arrival	Fight No.	Price
July. 11	Beijing	Hong Kong	08:05	11:35	CA101	￥2400
July. 11	Beijing	Los Angeles	15:40	06:51	CA985	￥7280
July. 11	Beijing	London	14:10	00:45	CA937	￥3950
July. 11	Beijing	New York	21:00	19:00	CA983	￥8750
July. 11	Beijing	Paris	13:35	00:40	CA933	￥4840
July. 11	Beijing	Washington	14:00	09:00	CA987	￥4200

小题1:If you want to have a trip to Paris by plane, what time will you arrive there?

小题2:Which flight will you take to New York?

小题3:What’s the price for the ticket from Beijing to Los Angeles?

小题4:How long will it take you to reach London from Beijing?

A．nine hours and twenty-five minutes.

B．twelve hours and forty minutes.

C．eleven hours and thirty-five minutes.

D．ten hours and thirty-five minutes.

单项选择题

设随机事件A与B互不相容，且A与B又相互独立，已知P=0.3，则P（B-A）为（）。

A．0

B．0.3

C．0.4

D．0.7

E．以上结论均不正确