根据短文内容和首字母提示，在下文空格处填入适当的词使短文完整。在标有题号的横线上，完整写出空缺处所填单词的正确形式。（每空一词）
Remember to be a good boy or a girl any time. It’s i__小题1:__ to have good manners, especially in some p__小题2:__ places. When you are waiting in line, don’t jump the queue. Be p__小题3:__. Don’t stand too close to others in the line. Keep 20cm a__小题4:__ if you can.
F__小题5:__ the advice of the workers when your are having a visit on a place of interest. Do not climb on exhibitions. Make s__小题6:__ it’s OK to take pictures before you hold up your camera. When you go to shows, w__小题7:__ clean clothes. You should get to the show 15 minutes before it starts. During the shows, turn o__小题8:__ your cell phone. Don’t eat during the show. Restaurants will be quite busy. Don’t stay too long when you finish eating. Remember to t__小题9:__ your rubbish away after the meal.
Good manners can make you a g__小题10:__ or a lovely lady. Wherever you are, others will be pleased with you.
的斜面与水平面保持静止，斜面上有一重为G的物体A，物体A与斜面间的动摩擦因数
.现给A施以一水平力F，如右图所示．设最大静摩擦力与滑动摩擦力相等(sin 37°＝0.6，cos 37°＝0.8)，如果物体A能在斜面上静止，水平推力F与G的比值可能是( )