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Who is the speaker
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在Access中，表之间的关系都定义为________的关系。
Questions 68-73 are based on the following passage. Normally a student must attend a certain number of courses in order to graduate, and each course which he attends gives him a credit which he may count towards a degree. In many American universities the total work for a degree consists of thirty-six courses each lasting for one semester. A typical course consists of three classes per week for fifteen weeks; while attending a university a student will probably attend four or five courses during each semester. Normally a student would expect to take four years attending two semesters each year. It is possible to spread the period of work for the degree over a longer period. It is also possible for a student to move between one university and another during his degree course, though this is not in fact done as a regular practice. For every course that he follows a student is given a grade, which is recorded, and the record is available for the student to show to prospective employers. All this imposes a constant pressure and strain of work, but in spite of this some students still find time for great activity in student affairs. Elections to positions in student organizations arouse much enthusiasm. The effective work of maintaining discipline is usually performed by students who advise the academic authorities. Any student who is thought to have broken the rules, for example, by cheating has to appear before a student court. With the enormous number of students, the operation of the system does involve a certain amount of activity. A student who has held one of these positions of authority is much respected and it will be of benefit to him later in his career. ______ The student organizations seem to be effective in ensuring that the students observe university regulations.
Instead, I’ll ______ on the differences between the two versions; unfortunately most of the differences took away from the original films, ______ I think is truly excellent.
Questions 56-60 are based on the following passage. On Thursday afternoon Mrs. Clarke, dressed for going out, took her handbag with her money and her key in it, pulled the door behind her to lock it and went to the Over 60s Club. She always went there on Thursday. It was a nice outing for an old woman who lived alone. At six o’clock she came home, let herself in and at once smelt cigarette smoke. Cigarette smoke in her house How Had somebody got in She checked the back door and the windows. All were locked or fastened, as usual. There was no sign of forced entry. Had anything been taken She went from room to room, checking. Yes, some things were missing--her small radio, her spare watch, a camera. That was all, she thought; but she couldn’t be sure just yet. She was annoyed, of course, but rather glad that nothing had been thrown about. Over a cup of tea she wondered whether someone might have a key that fitted her front door--"a master key" perhaps. So she stayed at home the following Thursday. Nothing happened. Was anyone watching her movements On the Thursday after that she went out at her usual time, dressed as usual, but she didn’t go to the club. Instead she took a short cut home again, letting herself in through her garden and the back door. She settled down to wait. It was just after four o’clock when the front door bell rang. Mrs. Clarke was making a cup of tea at the time. The bell rang again, and then she heard her letter-box being pushed open. With the kettle of boiling water in her hand, she moved quietly towards the front door. A long piece of wire appeared through the letter-box, and then a hand. The wire turned and caught around the knob on the door-lock. Mrs Clarke raised the kettle and poured the water over the hand. There was a shout outside, and the skin seemed to drop off the fingers like a glove. The wire fell to the floor, the hand was pulled back, and Mrs. Clarke heard the sound of running feet. That evening she reported the matter to the police. They were not too pleased, but they came and took away the wire and the skin. "It was only self-protection," she told the officer." An old woman must try to look after herself." With the help of a doctor the police found the man and recovered Mrs Clarke’s things. She has become something of a heroine at the Over 60s Club. The lock on the front door was one which ______.
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