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建立数据字典的时机是 [5] 。
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Questions 1 to 5 are based on an interview. The interviewee’s first job was with ______.
The increase in international trade has lead to the demand for employees with the ability to communicate in a foreign language（）
Conversation 1Questions 6 and 7 are based on the following conversation.[听力原文]6-7W: Good morning, sir. May I help youM: Yes. I have a room booked with you, for three days starting today. Name of Wang. W-A-N-G.W: Thank you, Mr. Wang. Please wait one moment while I check out our reservations list. (pause) That’s Mr. David Wang, from BeijingM: Yes, it is.W: Can I see your passport, pleaseM: Sure, here you are.W: Mr. Wang, everything is OK. Your booking is from today through Friday. Single room. Your room number is 505. Here’s your key.M: Thanks. Could you point me in the right directionW: Certainly, sir. The elevators are right across the lobby. Second floor to fifteenth are the elevators to the right. How long will David stay here（）
In November 1965, New York was blacked out by an electricity failure. The authorities promised that it would not happen again. Pessimists (悲观者) were certain that it would occur again within five years at the latest. In July 1977, there was a repeat performance which produced varying degrees of chaos throughout the city of eight million people. In 1965, the failure occurred in the cool autumn and at a time of comparative prosperity. In 1977, the disaster was much more serious bemuse it came when unemployment was high and the city was suffering from one of its worst heat waves.In 1965, there was little crime of looting (抢劫) during the darkness, and fewer than a hundred people were arrested. In 1977, hundreds of stores were broken into and looted. Looters smashed shop windows and helped themselves to loot jewelry, clothes or television sets. Nearly 4,000 people were arrested but far more disappeared into the darkness of the night. The number of policemen available was quite inadequate and they wisely refrained (抑制) from using their guns against mobs (暴徒) which far outnumbered them and included armed men.Hospitals had to treat hundreds of people cut by glass from the shop windows. Banks and most businesses remained closed the next day. The blackout started at 9: 30 p. m., when lightning hit and knocked out vital cables. Many stores were thus caught by surprise.The vast majority of New Yorkers, however, were not involved in looting. They helped strangers, distributed candles and batteries, and tried to survive in a nightmare world without traffic lights, refrigerators, elevators, water and electrical power. For twenty-four hours, New York realized how helpless it was without electricity. How can we say the blackout of 1977 not really a repeat performance（）
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