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【单选题】
对称三相四线制供电线路中,每相负载连接相同的灯泡(正常发光)。若断开A相,则出现的情况是()。A.
A 相灯泡不亮, B相灯泡比C相灯泡亮
B.
A 相灯泡比B、C相灯泡都亮
C.
A 相灯泡不亮, B、C相灯泡亮度一样
D.
A 相灯泡不亮, B、C相灯泡因而烧毁
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【单选题】以下属于风险投资特征的是( ) 。
A.
风险投资非正式
B.
风险投资较为正规化和专业化
C.
风险投资的投资人在投入资金的同时还会参与企业的管理
D.
风险投资的资金注入比较小且一次性投入
【简答题】噪声是电位器的一个重要参数,电位器的噪声包括( )、( )和( )三种。
【简答题】Which company _____ Liz work for now?
【单选题】A company should use a strategy to stimulate more usage of its products or services if
A.
the company is not the market leader but its brand is superior to a leader’s
B.
the company is not the market leader and its brand is inferior to a leader’s
C.
the company is the market leader and its brand usage is high
D.
the company is the market leader but its brand usage is low
【单选题】Which of the following is NOT a company in the energy sector?
A.
Shell.
B.
ICI.
C.
RTZ.
D.
British Gas.
【单选题】I will be in ________ of this company in five years.
A.
blame
B.
charge
C.
scold
D.
curse
【单选题】He _________ a manager with a big company.
A.
signed as
B.
signed for
C.
signed up as
D.
signed up
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