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【单选题】
When an open occurs on the input to a bipolar logic device, the output will ________.
A.
go LOW, because there is no current in an open circuit
B.
go HIGH, since full voltage appears across an open
C.
react to the open input as if it were a HIGH input
D.
still be good, if only the good inputs are used
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参考答案:
举一反三
【单选题】下列有关科学常识的表述,不正确的是:
A.
月亮对海水的吸引力比太阳大,引起地球上潮汐现象的主要原因是月亮对海水的吸引力
B.
世界著名的“死海”位于西亚,尽管“死海”的含盐量较高,但其中的营养物质也很丰富,“死海”中有大量的水生动植物
C.
云和雾都是水蒸气达到饱和并凝结成细小的水滴而形成的,它们在本质上是相同的
D.
“X射线”是一种波长比紫外线更短的光,它是由德国物理学家伦琴在1895 年发现的
【判断题】魏晋时期的隐逸之风体现了名士对自由的向往和追寻。()
A.
正确
B.
错误
【简答题】微课源自 市的教育改革实践活动。
【单选题】胆总管切开取石手术后,下列哪项是拔除T形管引流的指征( )
A.
术后l周,疼痛消失
B.
术后1周,引流量减少
C.
术后2周,引流量减少,造影通畅
D.
术后2周,引流量增加
E.
术后体温正常,白细胞未升高
【简答题】Read the following newspaper article about Telecommuting For each question 1-4, choose the correct answer. Telecommuting Working at home and saving money at the same time might sound too good to be tr...
【判断题】美国主要出口劳动密集型农产品。
A.
正确
B.
错误
【单选题】Which of the following is NOT the reason why telecommuting has become popular?
A.
It can balance employees' work and life.
B.
It can help save the cost for companies.
C.
It can reduce conflicts between employers and employers.
D.
It can kill the time spent in going to work from home.
【单选题】Which of the following is not the reason why telecommuting has become popular?
A.
It can balance employees' work and life.
B.
It can help save the cost for companies.
C.
It can reduce conflicts between employers and employers.
D.
It can kill the time spent in going to work from home.
【单选题】You must decline an employee's request to telecommute three days per week. Which of the following statements best explains why this bad news is necessary?
A.
Our current company policy does not allow telecommuting.
B.
Unfortunately, we regret that we are unable to afford the expenses associated with telecommuting.
C.
Your daily presence in the office is important to ensure regular customer contact.
D.
Your work standards cannot be relied on unless we are able to observe you at your workstation.
【简答题】Read the following newspaper article about Telecommuting For each question 1-4, choose the correct answer. Telecommuting Working at home and saving money at the same time might sound too good to be tr...
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