复核工程付款账单，签发付款证书属于施工阶段投资控制的（ ）。A.组织措施B.经济措施###SX

下列哪种现象可能发生在技术发展的“挑战者时期”?（）

A.数码相机抢夺胶卷相机的市场
B.打字机的功能完全被电脑所代替
C.凡尔纳小说已有对潜艇的构想
D.人们的日常生活离不开智能手机

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听力原文：W: Hi, Larry, are you waiting to see Prof. Gilmore, too?M: Yah, since I got one of the five highest grades in her class, she asked me if I'd be interested in working as her assistant next semester. I'm here now for my interview.W: Oh, yes. I know all about that job. I did it two years ago.M: Really? Did you like it?W: I think it was the best I've had at school. It paid eight dollars an hour, which was three dollars an hour more than I got working at the school post office the year before.M: That is a good salary. What did you do?W: I was in charge of grading all the problem sets that were assigned as homework. I never had trouble doing it, and of course, Prof. Gilmore was always available to help me if I had any questions. M: I think I'd enjoy doing that sort of work. It would be very good experience for anyone thinking about becoming a teacher. W: Absolutely. You also learn how to use the computer data base, because the records are kept on it. And building up your computer skills is a good preparation for lots of jobs. M: The job sounds great, but I'm a little worried about how much time it might take. W: It's pretty reasonable. It never took me more than five hours a week to do all the grading and then another thirty to forty minutes to record the grades on the computer.Questions 23 to 25 are based on the conversation you have just heard.23. Why was the woman able to give Larry so much information about the job?24. What do the speakers say about the salary for the job?25. What does Prof. Gilmore's assistant do?(20)A．She is a good friend of Professor Gilmore.B．She used to work for Professor Gilmore.C．She heard of it from other students.D．She arranges the job for Larry. 点击查看答案