计算：

（1）8﹣（﹣2）﹣（+3）+（﹣1）

（2）（﹣12）÷（+4）﹣（﹣2）×（﹣3）

（3）$\left(\frac{2}{3}-\frac{3}{4}+\frac{1}{12}\right)\times \left(-24\right)$

（4）$-3^3÷\left(-9\right)-\left(-3\right)\times \left(-\frac{2}{3}\right)+{\left(-2\right)}^3$．

   How many kinds of music do you know ? There is classical music, 1 music, country music, rap (说唱音乐) and so on. I think every type of music has its own 2. For example, I think country music is so beautiful and rap is very cool. My favorite kind of music is pop music 3 it is very interesting and exciting. It can make me feel very 4 .
   Now I want to tell you5 about my favorite singer and music group. My favorite singer is Jolin. Her Chinese name is Cai Yilin. She has a very beautiful 6 and her songs very wonderful. I love her song Say Love You, The Smell of Lemon Grass and Pirates best. What do you 7 these songs ? I hope Jolin has a good time every day.  8 my favorite music group ? That is S.H.E. Their songs are so cool that I have never 9 a chance to watch their performances.10 to music is also good for me. It can make me feel relaxed and less lonely when I stay at home alone.

如图所示，电流表、电压表均为理想电表，L为小电珠．R为滑动变阻器，电源电动势为E，内阻为r．现将开关S闭合，当滑动变阻器滑片P向左移动时，下列结论正确的是（   ）