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阅读理解 A As you research music, you will find music that is familiar to you. You will find music which tells of interesting places and exciting things to do. You will find music which expresses feelings that are often your own. Music is an expression of people. As you research, you will find music of people at work and play. You will find music expressing love of the country, love of nature, and love of home. Music is also an expression of the composer(作曲家). The composer expresses his own musical ideas. He studies the materials of music and discovers ways of using them. He looks for new kinds of musical expression. Music can suggest actions and feelings which we all share. We can enjoy playing and singing music, dancing and listening to the music of the people and the composers of different times and places. 小题1:In the first paragraph, the author tells us to ________. A.be friendly to music B.find entertainment in music C.express your feelings in music D.discover the things and places in music 小题2:From the second paragraph, we know that ________. A.if we love music, we will love the country, nature and home B.you may listen to music at work or at play C.music sings of the country, nature and home D.music can express how people live, work and think 小题3:The last paragraph shows that music makes it possible ________. A.that people of different time and places can get together B.to bring understanding between people of different times and places C.that people can enjoy playing and singing music, dancing and listening to the music at the same time D.that music can express actions and feelings at the same time 小题4:Which of the following statements is NOT true? Music expresses A.people’s musical ideas B.people’s love of te country C.ehe composer’s feelings D.the feelings of our own
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举一反三
【单选题】电感元器件的符号是
A.
R
B.
L
C.
V
D.
C
【判断题】一个离散时间LTI系统是因果系统的充分必要条件为 h[k]=0,k<0.
A.
正确
B.
错误
【多选题】电子电路中,常用元器件的符号正确的是()
A.
电阻“R”
B.
电容“F”
C.
电感“L”
D.
没有一个正确
【单选题】电子元器件中的符号表示()。
A.
无极电容
B.
电解电容
C.
二极管
D.
电感
【多选题】依据《劳动合同法》以及相关司法解释的规定 , 以下关于劳动合同变更的说法中正确的是( )
A.
为保证劳动合同履行的严肃性,劳动合同签订以后不得变更,双方应该按照约定履行
B.
劳动合同签订以后经双方协商一致可以变更,变更劳动合同只能采用书面形式,变更后的劳动合同文本由用人单位保管
C.
劳动合同签订以后经双方协商一致可以变更,变更劳动合同应当采用书面形式,变更后的劳动合同文本由用人单位保管
D.
劳动合同变更未采用书面形式,但双方已经实际履行了口头变更的劳动合同超过一个月,且变更后的劳动合同内容不违反法律、行政法规、国家政策以及公序良俗的,变更有效
【简答题】查询元器件的用途、基本单位及符号,按示例完成如下表格(可写在纸上,拍照截图上传)。 元器件名称 用途 符号(文字、图形) 基本单位 备注 电阻元件 分压、限流等 欧(Ω) 示例 电容元件 电感元件 变压器 二极管 三极管 集成稳压器
【单选题】最易诱发心绞痛的瓣膜病是
A.
主动脉瓣关闭不全
B.
主动脉瓣狭窄
C.
二尖瓣关闭不全
D.
二尖瓣狭窄
E.
肺动脉瓣狭窄
【判断题】一个线性时不变离散系统是因果系统的充分必要条件是:系统函数H(Z)的极点在单位圆内。
A.
正确
B.
错误
【判断题】一个线性时不变离散系统是因果系统的充分必要条件是:系统函数H(Z)的极点在单位圆内
A.
正确
B.
错误
【单选题】电感器的元件符号是
A.
H
B.
L
C.
R
D.
A
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