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【单选题】
There is a picture _____________ the post-card. [ ]A.
on
B.
in
C.
of
手机使用
分享
复制链接
新浪微博
分享QQ
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反馈参考答案：
举一反三
【简答题】理想电压源与电阻元件串联可以等效为( )源和( )并联。
【单选题】4
A.
Working in a company.
B.
Starting her own business.
C.
Testing out different investment strategies.
D.
Sharing ideas and thoughts through blogging.
【单选题】What does the speaker find most suitable for her now?
A.
Working in a company.
B.
Starting her own business.
C.
Testing out different investment strategies.
D.
Sharing ideas and thoughts through blogging.
【简答题】A. Working in a company. B. Starting her own business. C. Testing out different investment strategies. D. Sharing ideas and thoughts through blogging.
【单选题】下述有关等效变换的说法中错误的是( )。
A.
网络中没有电流的支路可以把它断开；等电位点可用理想导线把它们互连。
B.
电压为零的电压源可用开路代之；电流为零的电流源可用短路代之。
C.
伏安特性曲线与电压轴重合的电阻元件可用开路代之，伏安特性曲线与电流轴重合的电阻元件可用短路代之。
D.
电压源与任何元件（无耦合关系的）并联的组合就等效于这个电压源；电流源与任何元件（无耦合关系的）串联的组合就等效于这个电流源。
E.
任何一个由电阻元件组成的二端网络都可以用一个电阻元件来等效替代。
【单选题】Q5-3-3-1_4.mp3 4
A.
Working in a company.
B.
Starting her own business.
C.
Testing our different investment strategies.
D.
Sharing ideas and thoughts through blogging.
【单选题】How could the caller contact the IT Manager?
A.
by fixed telephone
B.
by cell phone
C.
by email
D.
through micro blogging
【单选题】听材料,回答下列问题。
A.
Working in a company.
B.
Starting her own business.
C.
Testing out different investment strategies.
D.
Sharing ideas and thoughts through blogging.
【单选题】高温是夏天出现的一种气象灾害,中国气象局对高温的定义是,日最高温度达到_____°C以上,该日为高温天气。高温,特别是持续的高温会给人体健康,交通、日常生活等带来严重的影响。
A.
30
B.
33
C.
35
D.
37
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