Sun Li was not happy at school last month.It was not because 1 hated school.It was because of her2.

    Sun studies in Anhui.Her school has a 3 rule about hair：no changing your hair color，no curly hair；boys should have a crew cut (平头)，4 girl's hair can't hang past their ears.

    Sun and the other girls in her class hate the5.They call it “mushroom head (蘑菇头)”.

    Sun's story is not the 6 one. In many other schools，there is also a hairstyle rule. Last week in a school in Beijing，some students were 7 to cut their long hair.

    Mr. Xu is the headmaster of the school. In his school，girls can't have hair past their shoulders (肩膀).He says the hair rule is there for a good 8.“Everybody needs to have a look that matches (与……相配) his or her job，” says Mr. Xu.“Those hairstyles are for adults.Students are 9 from adults.”

    The strict hair rule is not only made for students.Teachers also have to 10 it.“While students can't change their hair color，neither can their teachers. ” says Mr. Xu

小国从小就是品学兼优的好学生，顺利地考上南京大学。在大学期间，他出版了一本《我和阿泰的故事》，并顺利地参加了中国作家协会。毕业后，他光荣地参军。有一次，阿瓜问他部队里中国最新研制的歼击机事项，他以不太清楚敷衍了。参加工作后，兢兢业业，从不迟到，因表现突出，他被所在单位选为区人大代表。结婚后他把农村生活的父母接到城里来照顾。

读“我国长江三角洲图”，下列景点不在图示区域的是（    ）

已知∠A为锐角，且cosA≤$\frac{1}{2}$，那么∠A的范围是____