题干

如图是小阳探究电流产生的热量与哪些因素有关的实验装置,其中密闭容器的容积相等,下列说法中正确的是(   )

A:密闭容器中需装有质量不相等的空气

B:利用图甲的装置可以探究电流产生的热量与电阻大小是否有关

C:利用图乙的装置可以探究电流产生的热量与电流大小是否有关

D:该实验可以用U型管中液面高度差的大小来表示电流产生的热量

上一题 下一题 0.0难度 选择题 更新时间:2017-12-10 08:54:44

答案(点此获取答案解析)

B,C,D

同类题3

阅读理解

Choose Your One-Day-Tours!

    Tour A - Bath &Stonehenge: including entrance fees to the ancient Roman bathrooms and Stonehenge -£37 until 26 March and £39 thereafter.

    Visit the city with over 2,000 years of history and Bath Abbey, the Royal Crescent and the Costume Museum, Stonehenge is one of the world's most famous prehistoric monuments dating back over 5,000 years.

    Tour B - Oxford & Stratford  including entrance fees to the University St Mary's Church Tower and Anne Hathaway's -£32 until 12 March and £36 thereafter.

    Oxford: Includes a guided tour of England's oldest university city and colleges. Look over the "city of dreaming spires(尖顶)"from St Mary's Church Tower. Stratford: Includes a guided tour exploring much of the Shakespeare wonder.

    Tour C - Windsor Castle &Hampton Court including entrance fees to Hampton Court Palace -£34 until 11 March and £37 thereafter.

    Includes a guided tour of Windsor and Hampton Court, Henry VIII's favorite palace. Free time to visit Windsor Castle (entrance fees not included).With 500 years of history, Hampton Court was once the home of four Kings and one Queen. Now this former royal palace is open to the public as a major tourist attraction. Visit the palace and its various historic gardens, which include the famous maze (迷宫)where it is easy to get lost!

    Tour D -Cambridge including entrance fees to the Tower of Saint Mary the Great -£33 until 18 March and £37 thereafter.

Includes a guided tour of Cambridge, the famous university town, and the gardens of the 18th century.