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【单选题】
某工程项目的招标投标活动中，发现投标人甲以低于成本的报价竞标。这里的成本应当以( )为标准。A.
整个建筑行业的平均成本
B.
所有投标人的平均成本
C.
投标人甲的成本
D.
项目所在地的平均成本
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【单选题】听力原文：W: This is too much. I have been waiting for my meal for more than half an hour. M: I know, but you see the restaurant is full and we're shorthanded today. Q: How does the woman feel? (15)
A.
She is satisfied.
B.
She is tired.
C.
She is impatient.
D.
She is happy
【单选题】Miss Sullivan tried to make Helen understand that "mug" is mug and "water" is water, but Helen kept confusing them, then Sullivan _________.
A.
dropped the subject once and for all
B.
continued to do it until she realized that her repeated attempts made Helen tired and angry
C.
became impatient and unhappy and gave it up
D.
dropped it for a while and picked it up when there was an opportunity
【简答题】Tired and impatient, we had a fight.
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