试题与答案

(4分)(1)如图是探究“电流通过导体产生的热量与电阻的关系”为达到实验目的,选

题型:实验题

题目:

(4分)(1)如图是探究“电流通过导体产生的热量与电阻的关系”为达到实验目的,选用的两电阻丝的阻值     (选填“相同”或“不同”)。通过观察_____________,可以知道电流产生的热量的多少。

(2)在探究“电流与电阻的关系”的过程中.小明把5Ω的电阻再分别换接10Ω、15Ω的电阻,重复实验,得到表一中三组数据.分析表一数据,可得出结论;保持电压不变时,导体中的电流跟导体的电阻成   比.小丽在做此实验时,每次只更换电阻,测得相应的电流值,如表二所示,根据表中数据,她无法得到与小明相同的结论,其原因是           

答案:

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参考答案:C

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题型:完形填空
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The usual time spent on a computer in a week was about twelve hours, with       user about thirty-two hours, and the lowest user only five hours.
All the children said they usually used computers      . Fourteen children told us they did some word processing (文字处理)       . Only two of them said computers helped with their lessons, and eight people told us they kept addresses and phone numbers on their computers or used       as diaries. Only three people said they were learning to make computer programmes and nobody looked up databases(数据库). None of them used computers for any      use.
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A.highB.higherC.the higher D.the highest
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A.to readB.readingC.to play gamesD.playing games
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小题7:
A.theirsB.themC.itsD.it
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A.anotherB.otherC.the otherD.others
小题9:
A.are seenB.have seenC.will be seen D.see
小题10:
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题型:多项选择题

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该两笔业务的会计分录分别是( )。

A.借记“短期贷款”科目,贷记“活期存款”科目

B.借记“活期存款”科目,贷记“短期贷款”科目

C.借记“活期存款”科目,贷记“利息收入”科目

D.借记“活期存款”科目,贷记“应收利息”科目

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