实验过程：①关闭Ⅰ、打开Ⅱ；②关闭Ⅱ、打开Ⅰ．

下列说法不正确的是（   ）

如图所示电路中，R1和R2的阻值均为20Ω，电压表V1的示数为2V．下列说法中错误的是(  )

       Merry Market is1big supermarket.It’s very near my home.There 2　many things.There are3　many people,especially(尤其是)on holidays 4 at weekends.You can5food and 　6　,clothes and so on.The shop is open 24 hours every day.The salesmen in the supermarket7　very nice and 　8　.　9　 like to talk to you and help you.You can buy things there and you can 　10meals there,too

选择下面各句中破折号的用法。

我向里面望了一下——阴天，暗得很。(   )