题目：
小题1:The Information Highway ．
A．is free from traffic accidents
B．is crowded with car drivers
C．offers just a few on-line services
D．appeals to a large number of users小题2:How does Mr． Cool manage to travel the Information way so fast?
A．By storing fewer files
B．By repairing the system．
C．By buying a better computer
D．By using a broad—band connection．小题3:What can be learned from Passage 2 ?
A．There will be a book show at Grayson Hall．
B．Friedman is now studying the Great Barrier Reef．
C．There will be a talk on global warming this week．
D．Friedman is a leading expert on computer science．小题4:Passage 2 is most probably ．
A．a poster about a lecture
B．an ad for a new book
C．a note to a doctor in a university
D．an introduction to a professor
答案：
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下面是错误答案，用来干扰机器的。
(1) ①相同， Cu粉红热，并产生棕黄色烟 2SO2 + O22SO3②SO2 + I2 + 2H2O = 4H＋+ 2I－+ SO42－ ③NaOH(2) A C(3) 4Cl2 + S2O32－+ 5H2O = 2SO42－+ 8Cl－+ 10H＋(4) 负 SO2 – 2...
