【单选题】def happy(): print("Happy birthday to you!") def happy_birthday(name): happy() print("Happy birthday, dear {}!".format(name)) happy() happy_birthday("teacher") A. Happy birthday to you! Happy birthday to you! Happy birthday, dear teacher! Happy birthday to you! B. Happy birthday to you! Happy birthday, dear teacher! Happy birthday to you! Happy birthday to you! C. Happy birthday to you! Happy birthday, dear teacher! Happy birthday, dear teacher! Happy birthday to you! D. Happy birthday to you! Happy birthday, dear teacher! Happy birthday to you!

On his 10th birthday.Marty manages to escape from the zoo and gets onto the subway, _____he believes that he can go to the wild.

We were playing a game of cards when Marty suddenly saw red. He said it was because       .

Who is the boss？ A: Jacques Monai B: Maggie Grey C: Nina D: Brian E: Marty

Marty是组织中的项目经理，他认为需要培养项目团队。管理层比较在意培训的成本，Marty告诉管理层这个培训不能算项目的花费。什么时候培训被认为是一种花费？

有如下代码： StringBuffer buffer = new StringBuffer("Happy Birthday");buffer.insert(2, '5');System.out.println(buffer);则最后输出的结果是（ ） A: Hap5py Birthday B: H5appy Birthday C: Ha5py Birthday D: Ha5ppy Birthday

She is such a difficult girl to please ________. A: when birthday gifts are concerned B: when concerning birthday gifts C: when birthday gifts concerned D: when birthday gifts concerning

--Happy birthday!--______. A: Happy B: Happy birthday C: Thank you

​如果要约束学生表的人员必须是“90后“，那么Birthday字段（日期型）应该添加的检查约束时________。‍ A: Birthday>="1990-01-01" B: Birthday>=1990 C: Birthday="90后" D: Birthday>="90后"

从datetime类型的数据列 birthday 中获取年份，正确 的方法是： A: frame['birthday'].dt.year B: frame['birthday'].year C: datetime.now().year D: pd.to_datetime(frame['birthday'])