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【单选题】
线路交换不具有的优点是( )A.
传输时
B.
处理开销小
C.
对数据信息格式和编码类型没有限制
D.
线路利用率高
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【简答题】一个国家的国内生产总值能否既超过它的国民总支出，又超过它的国民总收入?
【简答题】科学社会主义的核心内容是（ ）
【单选题】It's _____ meters in height, has _____ floors, it cost 1.5 billion dollars to build.
A.
828; 160
B.
282; 116
【简答题】World Expo 2010 Shanghai China is to be staged in Shanghai from May 1 to October 31, 2010. If you plan to visit the Shanghai Expo this summer, China Pavilion(馆)is a must - see area for you. China Pavi...
【简答题】阅读短文，然后根据短文内容选择最佳答案。 Cathy is 1.53 meters tall, but she is 160 pounds (磅). So she decides to lose weight from now on. She makes a plan for losing weight and puts it on the wall. Exercise 1. Run for 30...
【单选题】The lake is estimated to be 200,000 years old and is China's deepest fresh water lake , ( ) meters in one spot.
A.
160
B.
174
C.
184
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