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【判断题】
电磁波:随时间变化的运动电荷和电流辐射电磁场,电磁场在空间互相激发,在空间以波动的形式存在,这就是电磁波。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】According to the passage, the grown daughters require their mothers to do all the following EXCEPT______.
A.
give advice
B.
show affection
C.
offer help to look after their children
D.
provide financial aids
【多选题】Choose the expressions to be used when: Moving from point to point.
A.
Let’s get down to business.
B.
Let’s stop there then.
C.
Moving on now…
D.
What do you think?
E.
Just a moment…
F.
I think that’s unacceptable!
G.
Let’s move on to the next point then.
【单选题】--- What do you think of the speech given by the CEO from Hong Kong? --- Excellent, I have never heard ______________ one before.
A.
a more interesting
B.
the most interesting
C.
a more interested
D.
the most interested
【单选题】To point to somenthing,
A.
you are hungry.
B.
you use one finger.
C.
you are confident.
D.
you are bored.
E.
you use your hand.
F.
you cross your fingers.
【单选题】'(Never) (I have heard) such (a thing) in my life', (said) the old man.
A.
Never
B.
I have heard
C.
a thing
D.
said
【简答题】培训需求调查报告通常由哪几部分组成
【简答题】数据可视化的流程是: 、数据处理、可视化模式和可视化应用。
【单选题】以下哪个是常见的大数据处理流程.
A.
数据获取、数据清洗、数据分析、数据可视化
B.
数据清洗、数据获取、数据分析、数据可视化
C.
数据清洗、数据获取、数据可视化、数据分析
D.
数据可视化、数据清洗、数据获取、数据分析
【单选题】Refer to Exhibit 4-4 . A change from Point A to Point E represents a(n):
A.
increase in demand.
B.
decrease in demand.
C.
decrease in quantity demanded.
D.
increase in quantity demanded.
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