由于学号(SN)为00291的学生已毕业，欲在关系“Student”中删除该学生的所有信息，用元组关系演算语言实现应为________。 A: GET W (Student): Student. SN = 00291"DELETE W B: GET W: Student. SN = 00291"in StudentDELETE W C: HOLD W (student): Student. SN = 00291"DELETE W D: HOLD W: Student. SN = 00291"in StudentDELETE W

W: Oh, Michael... I didn’ t tell you. My sister phoned yesterday. She wants to get married.M: Married ! She’ s only seventeen. What does Michael think of the woman’ s sister（）。 A: She is too old to get married. B: She is not old enough to get married. C: She is older than expected. D: She is married.

M: I want to start a business, but where can I get the money? W: You can apply for a bank loan. Question: What did the woman advice the man to do?

to get along to get away with something to get on something to get out of to get over something to get together to get through to to get up 选词填空 The family always __________________ every summer for two weeks.

[听力原文]W: When will my watch be readyM: Well, it is 7:00 o’clock by my watch, and I’ll get it ready in a couple of hours. When can the woman get her watch（） A: At 9 A.M. B: At 9 P.M. C: At 2 A.M. D: At 12 P.M.

to get along to get away with something to get on something to get out of to get over something to get together to get through to to get up 选词填空The two girls __________________ well until they wanted the same boyfriend, and then they were no longer friends.

For some students, it’s difficult ________ school A: to get to B: get to C: to get D: get

By the time you （）back, the supper （）ready. A: will get; will be B: get; was C: get; will be D: will get; is

It takes me twenty-five minutes _______ there by bus. A: to get B: get to C: get D: to get to

HashMap中的get()方法参数是？ A: get(id) B: get(value) C: get(key) D: get(index)