| A characteristic of American culture
that has become almost a tradition is to respect the self-made man—the man who
has risen to the top through his own efforts, usually beginning by working with
his hands. While the leader in business or industry or the college professor
occupies a higher social position and commands greater respect in the community
than the common laborer or even the skilled factory worker, he may take pains to
point out that his father started life in America as a farmer or laborer of some
sort. This attitude toward manual (体力的)labor is now still seen in many aspects
of American life. One is invited to dinner at a home that is not only comfortably but even luxuriousl(豪华地)furnished and in which there is every evidence of the fact that the family has been able to afford foreign travel, expensive hobbies, and coll A. A Respectable Self-made Family B. American Attitude toward Manual Labor C. Characteristics of American Culture D. The Development of Manual Labor [单选题]竖向钢筋电渣压力焊机电源电压应稳定,波动值应在( )范围内。.
A. 360 V±3V B.360 V±5V C.380±3V D.380±5V [判断题]装、拆接地线，应作好记录，交接班时应交待清楚。
A.正确 B.错误 [填空题]
阅读下面这篇短文，短文后有2项测试任务；(1)第23～26题要求从所给的6个选项中为第2～5段每段选择1个正确的小标题，(2)第27～30题要求从所给的6个选项中选择4个正确选项，分别完成每个句子。 {{B}}
Atmosphere{{/B}}
1．The atmosphere is a mixture of several gases. There are about ten chemical elements which remain permanently in gaseous form in the atmosphere under all natural conditions. Of these permanent gases, oxygen makes up about 21 percent and nitrogen about 78 percent. Several other gases, such as argon (氩), carbon dioxide, hydrogen, neon (氖), krypton (氪), and xenon (氙), comprise the remaining one percent of the volume of dry air. The amount of water vapor, and its variations in amount and distribution is of extraordinary importance in weather changes. Atmospheric gases hold in suspension (悬浮) great quantities of dust, pollen (花粉), smoke, and other impurities which are always present in considerable, hut variable amounts. 2．The atmosphere has no definite upper limits but gradually [简答题]班级群体会对学生的发展产生什么样的影响
[单项选择]数字信封技术能够_______。
A. 对发送者和接收者的身份进行认证 B. 对发送者的身份进行认证 C. 防止交易中的抵赖发生 D. 保证数据在传输过程中的安全性 [单项选择]被间日疟原虫(除外环状体)寄生的红细胞的变化为（ ）
A. 豪乔小体 B. 仅红细胞涨大 C. 仅有薛氏小点 D. 仅红细胞染色浅 E. 红细胞涨大、色淡，有薛氏小点 [判断题]过热蒸汽所含热量由饱和水含热量、汽化潜热和过热热量三部分组成。（ ）
A.正确 B.错误 [判断题]只有硬件没有软件的计算机通常称为“裸机”。
[单选题]视觉信号的基本颜色分为（ ）、黄色和绿色。
A.白色 B.红色 C.蓝色 D.黑色 [判断题]2.83 设区的市或者相当于同级的公安机关交通管理部门报经省级公安机关交通管理部门批准同意后,可启用新的发牌机关代号。
A.正确 B.错误 [简答题]对于本单位无法通过常规技术手段进行电子数据处理的情况，可委托（）处理。
[单选题]室内火灾中,可燃物表面全部卷入燃烧的瞬变状态叫做( )
A.爆炸 B.爆燃 C.轰燃 D.回燃 [判断题]进出配电站、开闭所应随手关门。
A.正确 B.错误 [单项选择]洛伦茨曲线代表了( )。
A. 贫困的程度 B. 税收体制的效率 C. 收入不平均的程度 D. 税收体制的透明度 [单项选择]女性，68岁，患糖尿病15年，近2个月采用胰岛素强化治疗。但空腹血糖仍高达10mmol／L。对临床治疗指导意义最大的检查为（）
A. 胰岛素释放 B. C肽 C. 睡前血糖 D. 胰岛素抗体 E. 凌晨3点血糖 [单选题] 基本RS触发器是( )。
A.组合逻辑电路 B.单稳态触发器 C.双稳态触发器 D.无稳态触发器 [单选题]根据《国家电网公司电能表质量监督管理办法》，电能表某一到货批次全检验收试验合格率大于或等于 （ )，即评定为该批次合格，并更换不合格产品。
A.0.9 B.0.95 C.0.98 D.0.99 [单项选择]Which item is the great majority of software vulnerabilities that have been discovered？（）
A. Stack vulnerabilities B. Heap overflows C. Software overflows D. Buffer overflows 我来回答: 提交
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