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问题 单项选择题

B级钢配件焊修，配件焊修后应采用（）热处理工艺。

A.正火

B.淬火

C.回火

答案

参考答案：C

填空题

Kofi Annan says helping survivors of last week’’s earthquake and (1)________in the Indian Ocean is (2)________. The United Nations secretary-general says countries that have offered aid must (3)________and provide it. The offers add up to around (4)________dollars. United Nations officials say (5) ________of that is needed during the next six months.The concern about offers of international aid is (6)________. For example, the earthquake in Bam, Iran, in (7)________of 2003 killed more than (8) ________people. Countries and groups offered hundreds of millions of dollars (9) ________. The United Nations says it has (10)________only about (11)________dollars in aid received so far. Governments and organizations that offered help (12) ________that, however.On (13)________Mr. Annan met with world leaders in Jakarta, Indonesia to discuss aid for (14)________. The leaders discussed and (15)________the idea of (16)________owed by affected nations. But the leaders did not say they would do so. Some said that (17)________to survivors would be more helpful.Representatives of (18)________countries and international organizations attended the meeting in Jakarta. Officials say they will cooperate to develop (19)________ for the Indian Ocean and the (20)________.
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单项选择题

背景：某体育馆工程发布施工招标公告，6月10日发售招标文件，投标文件提交时间截止于7月10日上午9：00，投标保证金20万元。甲投标人于7月8日通过个人关系获得招标人中标承诺，7月9日下午甲修改标书。本次招标共有三个投标人按时递交了标书。招标人从评标专家库中随机抽取3名专家，与2名招标人代表共同组成评标委员会。评标时认定乙投标人所投标书为废标，有效标书两份，中标候选人各单依次为丙、甲两企业。招标人确定丙为中标人，于8月1日发出了中标通知书，要求于8月30日前签订施工合同；8月10日丙告知招标人表示放弃中标。
根据背景，作答下列7-11题。

若本次招标活动无任何违法行为，则下列关于定标环节的表述中，正确的是( )。

A．8月8日，甲取回了投标保证金

B．中标通知书发出后，招标人应当与丙签订施工合同

C．丙在收到中标通知书前，可以放弃中标并取回投标保证金

D．招标人有权改变中标结果
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