根据下面定义的数据段: DSEG SEGMENT DATl DB'1234'

题型:单项选择题

问题:

根据下面定义的数据段: DSEG SEGMENT DATl DB'1234' DAT2 DW 5678H ADDR EQU DAT2-DAT1 DSEG ENDS 执行指令MOV AX,ADDR后,AX寄存器中的内容是______。

A.5678H

B.7856H

C.4444H

D.0004H

考点:计算机等级考试PC技术三级PC技术笔试49
题型:单项选择题

某建筑公司(乙方)于某年4月20日与某厂(甲方)签订了修建建筑面积为3000m2工业厂房(带地下室)的施工合同。乙方编制的施工方案和进度计划已获工程师批准。该工程的基坑开挖土方量为4500m3,假设直接费单价为4.2元/m2,综合费率为直接费的20%。该基坑施工方案规定:土方工程采用租赁一台斗容量为1m3的反铲挖掘机施工(租赁费450元/台班)。甲、乙双方合同约定5月11日开工,5月20日完工。在实际施工中发生了如下事件。事件1:因租赁的挖掘机大修,晚开工2天,造成人员窝工10个工日。事件2:施工过程中,因遇软土层,接到工程师5月15日停工的指令,进行地质复查,配合用工15个工日。事件3:5月19日接到工程师于5月20日复工令,同时提出基坑开挖深度加深2m的设计变更通知单,由此增加土方开挖量900m3。事件4:5月20~22日,因下大雨迫使基坑开挖暂停,造成人员窝工10个工日。事件5:5月23日用30个工人修复冲坏的永久道路,5月24日恢复挖掘工作,最终基坑于5月30日挖坑完毕。

每项事件工期索赔各是多少天?总计工期索赔是多少天?

题型:单项选择题

男45岁,咳嗽,咯血2月余,20年吸烟史,请结合影像学检查,选出最可能的诊断

A.肺结核

B.小细胞肺癌

C.肺脓肿

D.肺囊肿

E.肺错构瘤

题型:单项选择题

在80x86宏汇编语言中,为了使程序更加清晰易读,需要为程序代码添加一些注释,注释必须以下列哪种符号开始

A.//

B.'

C.;

D.{

题型:单项选择题

The "standard of living" of any country means the average person’s share of the goods and services which the country produces. A country’s standard of living, (1) , depends first and (2) on its capacity to produce wealth." Wealth" in this sense is not money, for we do not live on money (3) on things that money can buy. "Goods" such as food and clothing, and "services" such as transport and " (4) ". A country’s capacity to produce wealth depends upon many factors, most of (5) have an effect on one another. Wealth depends (6) a great extent upon a country’s natural resources. Some regions of the world are well supplied with coal and minerals, and have a fertile soil and a (7) climate; other regions possess none of them.

Next to natural resources (8) the ability to turn them to use. China is perhaps as well (9) as the USA in natural resources, but suffered for many years from civil and (10) wars, and (11) this and other reasons was (12) to develop her resources. (13) and stable political conditions, and (14) from foreign invasion, enable a country to develop its natural resources peacefully and steadily, and to produce more wealth than another country equally well (15) by nature but less well ordered.

A country’s standard of living does not only depend upon the wealth that is produced and consumed (16) its own borders, but also upon what is indirectly produced through international trade. (17) , Britain’s wealth in foodstuffs and other agricultural products would be much less if she had to depend only on (18) grown at home. Trade makes it possible for her surplus manufactured goods to be traded abroad for the agricultural products that would (19) be lacking. A country’s wealth is, therefore, much influenced by its manufacturing capacity, (20) that other countries can be found ready to accept its manufactures.

11()

A. for

B. because

C. because of

D. due to

题型:单项选择题

红霉素不可与林可霉素合用的原因是()

A.扩大抗菌谱

B.增强抗菌活性

C.减少不良反应

D.增加生物利用度

E.相互竞争结合部位,产生拮抗作用

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