在大修理过程中,一个修理复杂系数的设备所要消耗的各种修理费用称为( )。

某男，29岁，系一餐馆厨师。因感染大肠杆菌(EIEC)而出现腹泻，粪便细菌培养阳性。不久，与餐馆有过关系的一些人发生腹痛，并向周围传播，部分病人出现黏液脓血便。首先考虑为何病

A.急性胃炎
B．胃肠型食物中毒
C．急性细菌性痢疾
D．霍乱
E．急性坏死性出血性肠炎

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M：I’m going to book a train ticket 10days in advance because it happens to be Spring Festival.W：Don’t worry.There will be extra trains added to the original schedule.Q：What does the woman imply？（）

A．There would be some problems for the man to secure a ticket.
B．There would be no problem for the man to secure a ticket.
C．There might be some extra tickets available for the man.
D．The man should book the ticket even earlier.

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