"We studied the US manned rovers used in Apollo 15, 16 and 17 missions and adopted their experience in our design," Zhan said.

China's first rover to touch the moon's surface is the 140-kilogram, six-wheeled Yutu, which was part of the Chang'e-3 mission last year. It began operating on Dec 15.

The Chinese buggy has outlived its design life of three months and is in its fourth period of dormancy.

Questions:

1. What was unveiled at the Chongqing technology fair?

2. What can the vehicle carry?

3. The first manned lunar rover was used in what American mission to the moon?

Answers:

1. A four-wheeled lunar rover.

2. Two people and a heavy payload.

3. Apollo 15.

About the broadcaster:

Anne Ruisi is an editor at China Daily online with more than 30 years of experience as a newspaper editor and reporter. She has worked at newspapers in the U.S., including The Birmingham News in Alabama and City Newspaper of Rochester, N.Y.

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