电视机等家用电器的开启、关闭及频道转换,可以通过遥控器实现,遥控电视机的光是[

题型:选择题

问题:

电视机等家用电器的开启、关闭及频道转换,可以通过遥控器实现,遥控电视机的光是[ ]

A.红光

B.红外线

C.紫光

D.紫外线

考点:红外线
题型:选择题

乳癌最基本的治疗是手术治疗,外上象限Ⅱ期乳癌的标准手术方式是()

A.典型根治术

B.改良根治术

C.扩大根治术

D.单纯 * * 切除术

E.局部切除+放疗

题型:选择题
In some cities, workaholism(工作狂)is so common that people don’t consider it unusual, they accept the lifestyle as ____11____. Government worker in Washington D.C, ____12___, frequently work sixty to seventy hours a week. They don’t do this because they have to; they do it because they ___13___to. Workaholism can be a ___14___problem. Because true workaholism would rather work than do anything else, they___15___have no idea of how to relax; that is, they might not ___16___movies, sports, or other types of entertainment. Most of all, they ___17___  to sit and do nothing. The lives of workaholics are usually stressful, and this tension (紧张) and worry can cause___18___problems such as heart attacks and stomach disease. ___19___, typical workaholics don’t pay much attention to their families. Their marriages may end in­­___20___ as they spend little time with their families.
Is workaholism___21___dangerous? Perhaps not. There are, certainly, people who work ___22___under stress. Some studies show that many workaholics have great energy and interest in work. They feel ___23___ is so pleasurable that they are actually very happy. For most workaholics, work and entertainment are the same thing. Their jobs___24___them with challenge; this keeps them busy and creative.
Why do workaholics enjoy their jobs so much? There are several factors to work. Of course, it provides people with paychecks. But it offers more than financial security. It provides people with self-confidence; they have a feeling of satisfaction ___25___ they have produced a challenging piece of work.
小题1:
A.strangeB.boringC.pleasantD.normal
小题2:
A.for exampleB.on the other handC.what’s moreD.after all
小题3:
A.agreeB.promiseC.dareD.want
小题4:
A.slightB.seriousC.obvious D.difficult
小题5:
A.stillB.probablyC.certainlyD.mostly
小题6:
A.affordB.enjoyC.watchD.allow
小题7:
A.dreamB.decideC.intendD.hate
小题8:
A.physicalB.culturalC.socialD.mental
小题9:
A.ThereforeB.HoweverC.AnywayD.Besides
小题10:
A.happinessB.silenceC.failureD.surprise
小题11:
A.sometimesB.alwaysC.seldomD.hardly
小题12:
A.sadlyB.differentlyC.efficientlyD.slowly
小题13:
A.studyB.familyC.lifeD.work
小题14:
A.equipB.packC.provideD.fill
小题15:
A.whenB.beforeC.unlessD.until
题型:选择题

根据《电力安全事故应急处置和调查处理条例》,发电厂、变电站运行值班人员、电力调度机构值班人员或现场负责人接到电力安全事故报告后,应当立即向上一级电力调度机构和本企业负责人报告。

题型:选择题

数控机床加工的加工精度比普通机床高,是因为数控机床的传动链较普通机床的传动链长。

题型:选择题

在关系数据库设计理论中,如果一个关系R满足1NF,但R的某个非码属性传递函数依赖于码,则关系R至多属于
A) 1NF
B) 2NF
C) 3NF
D) BCNF

更多题库