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听力测试 A)听下面10段对话,回答每段对话后的问题.(每小题1分) 1.How many times does the man go shopping in a month? A.Twice a week. B.eight times. C.Twice. 2.What’s wrong with Jack? A.He has a cold. B.He has a stomachache. C.He has a sore back. 3.How does Mary go to school? A.By car. B.On foot. C.By bike. 4.Can Li Lei come to Cindy’s party? A.Yes, he can. B.No, he can’t. C.We don’t know. 5.Who is quieter, Tom or his brother? A.Tom. B.His brother. C.They are both quiet. 6.What are they talking about? A.Making milk shake. B.Making fruit salad. C.Making sandwiches. 7.Where did Jim go on the day off? A.He went to beaches. B.He went to the mountains. C.He went to the aquarium. 8.When was Michael Jordan born? A.In 1963. B.In 1980. C.In 1973. 9.What’s Li Lei’s sister going to be? A.A computer programmer. B.A pilot. C.An engineer. 10.What’s the best movie theater? A.Town Cinema. B.Screen City. C.Movie Palace. B)听下面三段对话,回答问题.(每小题1分) Dialogue 1: 11.Where does the woman go? A.To the hotel. B.To the hospital. C.To the station. 12.Where is the station? A.At the end of the road. B.In the middle of the road. C.Near the factory. 13.How far away is the station? A.Three kilometers. B.Two kilometers. C.Ten kilometers. Dialogue 2: 14.What are they getting ready for? A.Teachers'day. B.Children's Day. C.Women's Day. 15.Where will they hold the party? A.In the office. B.In the library. C.In the classroom. 16.Who will the students have the party with? A.Their parents. B.Their teachers. C.Their friends. Dialogue 3 17.What day is it today? A.Wednesday. B.Thursday. C.Friday. 18.Where was Judy yesterday? A.At home. B.At school. C.In the hospital. 19.What did Li Lei have for his breakfast? A.Eggs B.Bread. C.Milk 20.What time does the first lesson begin? A.At 7∶40 B.At 7∶45 C.At 7∶50 C)听下面一段短文,根据短文内容回答问题.(每小题1分) 21.What is Mike’s job in New York City? A.A postman. B.A waiter. C.A journalist. 22.How did Mike go to San Francisco? A.By plane B.By train. C.On foot. 23.What did Mike really want to see? A.The scenery of Italy. B.The scenery of Canada. C.The scenery of the USA. 24.When did the train leave New York City? A.At 10∶30 pm on Monday. B.At 11∶20 pm on Friday. C.At 9∶30 am on Sunday. 25.Why didn’t Mike sleep that night? A.Because he was angry. B.Because he had many things to do. C.Because he was excited.
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【简答题】设计一序列信号发生器,以产生序列信号1111001000,…
【单选题】信号序列 { 32 ,551,438,2323,57}与{ 23 ,2332,3345,3939,9} 的卷积和等于 。
A.
{ 736 ,87,297,1402046,3043988,9054334,9633600,9344904,245430,513}
B.
{ 513 ,87297,1402046,3043988,9054334,9633600,9344904,245430,736}
C.
{ 9634336 ,9432201,1647476,3044501,9054334}
D.
{ 9054334 ,9634336,9432201,1647476,3044501}
【简答题】脱式计算。 (1)55+32÷8 (2)88-9×6 (3)876-(162+88) (4)800-181-438
【简答题】信号序列和信号斑
【简答题】引导序列与信号序列有什么不同?
【单选题】血流信号可表现为高信号的脉冲序列是
A.
SE序列
B.
FSE序列
C.
HASTE序列
D.
FLASH序列
E.
TSE序列
【判断题】东西方在古代性文化发展中差异不大。()
A.
正确
B.
错误
【判断题】模拟正弦信号的采样序列都是周期序列。(    )
A.
正确
B.
错误
【单选题】下列表述中,正确的是
A.
库存现金应每日清点一次
B.
银行存款每月至少同银行核对两次
C.
贵重物品每天应盘点一次
D.
债权债务每年至少核对二至三次
【判断题】438-197= 438-200-3 [     ]
A.
正确
B.
错误
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