患者，男性，58岁，患高血压性心脏病数年，有时因激动或过劳而发生心绞痛，最初经休息后

某拦湖大坝加固改造工程发包人与施工单位签订了工程施工合同，合同中估算工程量为8000m³，单价为200元／³，合同工期为6个月，有关付款条款如下：（1）开工前发包人应向施工单位支付合同总价20%的工程预付款；（2）发包人自第一个月起，从施工单位的工程款中，按5%的比例扣留保留金；（3）当累计实际完成工程量不超过估算工程量10%时，单价不调整；超过10%时，对超过部分进行调价，调价系数为0.9；（4）工程预付款从累计工程款达到合同总价的30%以上的下一个月起，至合同工期的第五个月（包括第五个月）平均扣除。施工单位每月实际完成并经监理单位确认的工程量见表1F420155-2。

问题：（1）合同总价为多少？工程预付款为多少？（计算结果以万元为单位，保留到小数点后二位，下同）

（2）工程预付款从哪个月开始扣除？每月应扣工程预付款为多少？

（3）12月底监理单位应签发的付款凭证金额为多少？

下列叙述正确的是()。

A．描述性语言只需要指定“做什么”，不必说明“怎样做”

B．过程化语言只需要指定“做什么”，不必说明“怎么做”

C．描述性语言编程复杂，不易学习

D．SQL，QBE等都属于过程化语言

一位教育工作者的真正威信在于他的（　）。

A．权利

B．威严

C．权威

D．人格力量

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)________.