A:This is a girl.
B:This is a boy.
C:This is a teacher.
按照要求填空。
好峰随处改,____。(梅尧臣《鲁山山行》)
Miss Gao is our teacher. We all like ____ (she).
1 13 57 24 90 15 2 68
①合数有____。
②质数有____。
③既是奇数又是合数的有____。
④既是质数又是偶数的有____。