下列程序返回的结果是a = "first"def second(a): a = "second"def third(): global a a = "third"third()print(a, end=',')second("fourth")print(a)? third, third;|second,third;|second,first|first,second;

In Agenda, the first step is usually "other business". A: 正确 B: 错误

In 1988, Tsinghua University set up its first "Challenge Cup" competition. A: 正确 B: 错误

The first two lines of Alfred Tennyson's well-known poem "Break, Break, Break" read "Break, break, break, / oh, thy cold grey stones, O Sea!" The repeated word "break" suggests ____________. A: grief B: hatred C: fondness D: fear

Which facts show the American spirit of competition? A: People who like to compete are appreciated. B: There are a lot of expressions of "doing" rather than "being"in their language. C: Americans believe that "friendship first, compitition second". D: Americans learn competition skills since young.

American writers of the first postwar era self-conscously acknowledged that they are a "angry youth", devoid of faith and alienated from a civilization. A: 正确 B: 错误

Word中插入数学公式的方法是（）。 A: "插入"→"形状"→"公式" B: "开发工具"→"公式" C: "插入"→"公式"→"插入新公式" D: "引用"→"插入"→"公式"

定义并初始化一个用于存放我们国家的四个直辖市的数组cityName，四个直辖市为：北京，上海，天津，重庆. 正确的是_________ A: String[] cityName=new String[4]{"北京","上海","天津","重庆"}; B: String[] cityName=new String[]{"北京","上海","天津","重庆"}; C: String[] cityName={"北京","上海","天津","重庆"}; D: String cityName = new String[4] { "北京", "上海", "天津", "重庆" };

已知有一个名为names的空列表,如何向其中添加old_driver,rain,jack,shanshan,peiqi,black_girl 元素？ A: names.append("old_driver","rain","jack","shanshan","peiqi","black_girl") B: names.extend("old_driver","rain","jack","shanshan","peiqi","black_girl") C: names.insert("old_driver","rain","jack","shanshan","peiqi","black_girl") D: names.extend(["old_driver","rain","jack","shanshan","peiqi","black_girl"])

is originally drafted as "First Impressions" in 1796, is the most delightful of Jane Austen's works. A: Sense and Sensibility B: Pride and Prejudice C: Emma D: Mansfield Park