题目

第二节(共5小题；每小题2分，共10分)     根据短文内容，从短文后的七个选项中选出能填入空白处的最佳选项。选项中有两项为多余选项。 Muzak        The next time you go into a bank, a store, or a supermarket, stop and listen. What do you hear?   71   It's similar to the music you listen to, but it's not exactly the same. That's because this music was especially designed to relax you, or to give you extra energy. Sometimes you don't even realize the music is playing, but you react to the music anyway.        Quiet background mus下列实验操作正确的是（ ）A．  熄灭酒精灯B．  倾倒液体C．用滴管取液体D．   取粉末状固体