题目

The woman often called the First Lady of New York died in August. Brooke Astor was one hundred five years old. The extremely wealthy and famous New Yorker spent much of her life            41   (help)the needy in her beloved city. She was born in Portsmouth, New Hampshire. She was the only child of a high level military officer. After two earlier   42  (marry), she married Vincent Astor in 1953 again. He came from a family  43   had been rich for at least one hundred years. Among other things, he owed many buildings in New York City. Brooke Astor became one of the    如图已知直线AB、CD、EF相交于O，EF⊥AB于O， ①若∠AOC=30°，则∠BOC＝________，∠DOF＝________． ②若∠COE＝n°，则∠AOD＝________．