串联校正(名词解释)

A meager diet may keep you thin.
B. It means an extra 11 million tons of carbon dioxide.
C. The obese child was picked last.
D. US economist Martin Schmidt suggests a tax on fast food delivered to people"s cars.
E. Science has shown that they have limited personal control over their weight.
F. No one asked whether there was really a cause-and-effect relationship.

A. To build one more Hyper-X aircraft.
B. To carry out three more Hyper-X experiments.
C. To make the aircraft fly higher and longer.
D. To test another hypersonic flight at 10 times the speed of sound.