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【多选题】
送花给俄罗斯人应该是哪几个数目好
A.
7
B.
13
C.
16
D.
17
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参考答案:
举一反三
【单选题】温度一定时,金属导线的电阻( )。
A.
与长度成正比
B.
与截面积成正比
C.
与材料的电阻率有关
D.
与电流成反比
【多选题】温度一定时,金属导线的电阻( )。
A.
与长度成正比
B.
与截面积成正比
C.
与电压成正比
D.
与材料的电阻率有关
E.
与电流成反比
【单选题】温度一定时,金属导线的电阻与( )成正比、与截面积成反比、与材料的电阻率有关。
A.
长度
B.
材料种类
C.
电压
D.
粗细
【判断题】Teaching was done in the form of lecture because books were expensive in the Middle Ages of Europe.
A.
正确
B.
错误
【单选题】温度一定时,金属导线的电阻于( )成正比、与截面积成反比、与材料的电阻率有关。
A.
长度
B.
材料种类
C.
电压
D.
粗细
【简答题】小题1: Mr. Wu spent a lot of time______(解释)why he was late. 小题2:The ______(手术)done by Doctor Ma were all successful. 小题3: We have ______(更新鲜的)air in the country than in the city. 小题4:My teaching style i...
【简答题】第二节 完形填空(共20小题,每小题1.5分,满分30分) 阅读下面短文,掌握大意,然后从36-55各小题所给四个选项(A、B、C、D)中,选出最佳选项,并在答题卡上将该项涂黑。 Not long ago, someone asked the dad of a young pop star what his son would have done if he hadn’t become a sin...
【简答题】温度一定时,金属导线的电阻与( )成正比、与截面积成反比,与材料的电阻率有关。
【判断题】戏剧使希腊人多了一种教育渠道。()
A.
正确
B.
错误
【简答题】阅读理解。 When I started teaching at school, I was sure I would change the world and touch children who needed love. Although my students seemed to respond pretty well to my teaching, there was a small gr...
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