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  To prove the earth was round.

B)  To gather information for planning space flights.

C)  Because all spacecraft had to carry computers.

D)  Because it can measure the size of the satellite.

Passage Two

Questions 29 to 31 are based on the passage you have just heard.

29. A)  About 30,000.

B)  Around 300,000.

C)  Over 300,000.

D)  More than 330,000.

30. A)  He had promised to do so.

B)  He had this kind of training before.

C)  He didn’t want to make the crowd disappointed.

D)  He needed the great amount of money.

31. A)  Three times.

B)  Four times.

C)  Six times.

D)  Seven times.

Passage Three

Questions 32 to 35 are based on the passage you have just heard.

32. A) One in a billion digits.

B)  Zero.

C)  One mistake per two hundred digits.