皮皮学，免费搜题
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搜题
【单选题】
足球场地的边线用什么颜色的线划A.
白
B.
红
C.
绿
D.
蓝
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反馈参考答案：
举一反三
【单选题】The radiator is heat exchanger and transfers the heats in the water to the air outside car.
A.
a type of
B.
a piece of
C.
makes of
D.
consists of
【简答题】The condenser is designed to radiate heat, in many cases, will have much the same appearance as the radiator in your car as the two have very similar functions. Once the refrigerant is drawn into the ...
【判断题】Air is pulled through the fins via cooling fans causing the heat in the radiator to be transferred into the airstream and the vehicle is heated.
A.
正确
B.
错误
【单选题】The radiator is heat exchanger and transfers the heats in the water to the air outside car.
A.
a type of
B.
a piece of
C.
making of
D.
consisting of
【单选题】一束声波由空气射入水中,以下说法正确的是()
A.
频率变大，波长变短，速度不变
B.
频率变小，波长变长，波速不变
C.
频率不变，波长变短，波速变小
D.
频率不变，波长变长，波速变大
【简答题】如果两个网络的体系结构不完全相同就称为 ______ 。异构网络之间的通信需要相应的连接设备进行 ______________ 的转换。
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