How long does one academic year usually last in colleges and universities in the USA?

A . Since about two years. B . I do not know. C . For about two years. D . Who knows.

A . 正确 B . 错误

A . has the journey B . is the journey like C . does the journey take

A . guarantee undo retention B . add one more redo log group C . size the redo log files appropriately D . size the UNDO tablespace appropriately E . size the SYSTEM tablespace appropriately F . configure an appropriate undo retention interval G . change automatic undo management to manual

A . guarantee undo retention B . add one more redo log group C . size the redo log files appropriately D . size the UNDO tablespace appropriately E . size the SYSTEM tablespace appropriately F . configure an appropriate undo retention interval G . change automatic undo management to manual

A . I'm not sure. It depends on the mode your partner chose B . I'm not sure about that. It is a big city C . I don't know for sure. It is quite busy now in our bank

A . ./script.ksh B . nohup ./script.ksh C . run -b ./script.ksh D . ./script.ksh > nohup.out

A．One hour B．Two hours C．Three hours D．Four hours

M: It takes me half an hour usually, but during rush bolus it will take 15 minutes more. How long does it take Professor Baker to drive from his home to the university during rush hours？ A．35 minutes. B．45 minutes. C．15 minutes.

A:多长时间; B:多长时间一次; C:多少钱; D:多远

A．3 days. B．4 days. C．6 days. D．8 days.

Smith: I would like to buy a computer for my son. I was told it is cheaper to buy computers here. Do you have any recommendations？ Jane: Yes. We have plenty of choices for you. So, home computer or a laptop, which one does he like？ {A. Does he have any brand preference？; B. How much is it？; C. I’ll come back to buy it this weekend.; D. Can I help you？; E. How about this one？} Smith: He prefers ASUS(华硕), laptop, which is much more convenient. Jane: I see. {A. Does he have any brand preference？; B. How much is it？; C. I’ll come back to buy it this weekend.; D. Can I help you？; E. How about this one？} ASUS F83E335Cr-SL. It is really suitable for students. Smith: Let me see. Well, it’s good but I don’t think 320 GB is enough. Jane: If you wish to upgrade the hard drive, we can definitely do so. It costs 150 to upgrade it from 320GB to 500GB. Smith: Great. My son likes keeping a lot of movies and pictures on the hard drive. Jane: No problem. I’ll give you a more detailed brochure later. Smith: Thank you. {A. Does he have any brand preference？; B. How much is it？; C. I’ll come back to buy it this weekend.; D. Can I help you？; E. How about this one？} May I have a discount？ Jane: In total it costs 3900 yuan. If you pay for it on Saturday or Sunday this week, you can actually get 5 percent off the usual sale price. Smith: Wow. That’s really good. {A. Does he have any brand preference？; B. How much is it？; C. I’ll come back to buy it this weekend.; D. Can I help you？; E. How about this one？}

A、met B、heard C、witnessed (见证)

M: Well, it depends on the traffic, but shouldn't toke more than twenty minutes for the average driver. And I'm not average. So we should be able to cruise through traffic and get there in less than twelve minutes. W: Oh. By the way, do you know what time the museum closes？ M: Around 6:00 o'clock. W: Do you have the time？ M: Yeah. It's half past four. Hi, this is your first time to the city, right？ W: Yeah.How did you know？ M: Well, you can tell tourists from a mile away in this city because they walk down the street looking straight up at the tall buildings. W: Was it that obvious？ M: Well... W: Oh, before I forget, can you recommend any good restaurant downtown that offer meals at a reasonable price？ M: Umm...well, the Mexican restaurant, La Fajita, is fantastic. It's not as inexpensive as other places I know, but the decoration is very authentic, and theportions are larger than most places I've been to. W: Sounds great! How do I get there from the museum？ M: Well, you can take the subway right outside the museum. There are buses that run that way, but you would have to transfer a couple of times. And there are taxis too, but they don't run by the museum that often. M: Okay. Thank you so much. (20) A．He is an average driver. B．He is a skilled driver. C．He is below average. D．He is a green hand.

A.About ten hours. B.Five hours. C.Eight hours. D.Fourteen hours.