• 2022-06-15 问题

    When does the store open A: 8:30 am B: 9 am C: 5 pm D: 4:30 pm

    When does the store open A: 8:30 am B: 9 am C: 5 pm D: 4:30 pm

  • 2022-06-12 问题

    旋转命令ROTATE的快捷键是( )(1)R (2)RO (3)ROT (4)RT A: (1)R B: (2)RO C: (3)ROT D: (4)RT

    旋转命令ROTATE的快捷键是( )(1)R (2)RO (3)ROT (4)RT A: (1)R B: (2)RO C: (3)ROT D: (4)RT

  • 2022-06-03 问题

    已知am=9,an=8,ak=4,则am﹣2k+n=    .

    已知am=9,an=8,ak=4,则am﹣2k+n=    .

  • 2022-06-08 问题

    I am a 3-year-old little boy. (3) _____ parents gave me a dog. (4) ______ love it very much. (5) ______ name is “Alice”.

    I am a 3-year-old little boy. (3) _____ parents gave me a dog. (4) ______ love it very much. (5) ______ name is “Alice”.

  • 2021-04-14 问题

    Le numéro 23 est une belle maison ________ 4 étages.

    Le numéro 23 est une belle maison ________ 4 étages.

  • 2022-06-03 问题

    已知am=3,an=4,则a3m+2n=____.

    已知am=3,an=4,则a3m+2n=____.

  • 2022-06-03 问题

    已知am=4,an=3,则am+2n=(    )

    已知am=4,an=3,则am+2n=(    )

  • 2022-06-03 问题

    已知am=4,an=3,则a3m-2n=(  )

    已知am=4,an=3,则a3m-2n=(  )

  • 2022-06-15 问题

    Which of the following time is proper if you want to make an A: ? B: at 7:00 am C: at 4:00 pm D: at the midnight E: at 4:00 am

    Which of the following time is proper if you want to make an A: ? B: at 7:00 am C: at 4:00 pm D: at the midnight E: at 4:00 am

  • 2022-06-07 问题

    某元素R的气态氢化物的化学式为H&#91;sub&#93;2&#91;/&#93;R,则它的最高价氧化物对应的水化物的化学式为() A: HRO<sub>4</sub>; B: H<sub>3</sub>RO<sub>4</sub>; C: H<sub>2</sub>RO<sub>3</sub>; D: H<sub>2</sub>RO<sub>4</sub>

    某元素R的气态氢化物的化学式为H&#91;sub&#93;2&#91;/&#93;R,则它的最高价氧化物对应的水化物的化学式为() A: HRO<sub>4</sub>; B: H<sub>3</sub>RO<sub>4</sub>; C: H<sub>2</sub>RO<sub>3</sub>; D: H<sub>2</sub>RO<sub>4</sub>

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