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2023届衡水金卷先享题调研卷全国

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衡水金卷先享题调研卷2023

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1、2023届衡水金卷先享题调研卷全国

2、2023衡水金卷先享题调研卷三文综全国卷

3、2023年衡水金卷先享题调研卷生物

下列对能量转化的描述不正确的是(  )

A.蓄电池充电:电能一化学能
B.发电机工作:电能一机械能
C.萤火虫发光:生物质能一光能
D.内燃机工作:化学能一内能一机械能

最新问答:

  • A、给蓄电池充电时,蓄电池相当于用电器,将电能转化为化学能储存起来,故A正确,不符合题意;
    B、发电机工作:机械能一电能,故B不正确,符合题意;
    C、萤火虫发光:生物质能一光能,故C正确,不符合题意;
    D、内燃机工作时,燃料的化学能转化为内能,内能转化为机械能,故D正确,不符合题意;
    故选B.
  • 高二英语短文改错,急
    这是一篇文章,每题有一个错误,只有一题是打勾的,速求解答 1.When I was a child,my family lived in a small town. 2.My uncle owned a bookshop where I visited regularly. 3.I used to sit on the floor and enjoyed reading picture books. 4.At the age of 7,I started schools.And I helped my uncle in 5.the shop at weekends and holidays.I wrapped up books. 6.When business was quietly sometimes,I read.Later, 7.I was able to tell customers the books they were buying. 8.When I became a college student,I left for my home town. 9.I could not longer help and read books in the bookshop, 10.but I have gained a love for books,which has never left me.
    最新问答:

  • 1.√
    2.where → which/that 或 省略where
    3.enjoyed → enjoy
    4.schools → school
    5.at → on
    6.quietly → quiet
    7.customers和the中间加入about
    8.去掉for
    9.not → no
    10.去掉a
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