为了奖励对世界电影作出杰出贡献的人士,世界电影行业设置了许多奖项,其中属于美国好莱坞的是(   )

已知酒精、煤油、水银的熔点分别为－117℃、－30℃、－38.8℃，南极的最低气温可达-89.2℃，要测量南极的气温，应该选用（     ）

B

    As we all know，having a great memory is important．It can help you succeed in school，in your job，and in life．It also helps you learn faster and better．We all know that fast learner's are always in demand．If you have a great memory, I'm sure you can succeed more easily．

    If you are willing to make a few changes in your life．you should improve your memory first．My plan is to explain every skill that can help you improve your memory．

    You can not only learn memory skills on this website，but also learn how to improve your memory through diet，exercise，sleep and other ways．

    I think that memory improvement can be achieved (实现)in two ways：improving the health of your brain and using memory skills．Many people think they may be difficult．In fact, they are easier to do than you might think，but you have to work hard by yourself.

    Memory improvement needs time and effort on your part．You cannot improve your memory if you do not work on it．Of course，I believe that a more powerful brain is well worth the effort!

    Here are a few of the great memory improvement tips．I will give you some tips in the following part．

已知命题p：(x＋2)(x－6)≤0，命题q：－3≤x≤7，若“p或q”为真命题，“p且q”为假命题，则实数x的取值范围为____．