单项选择题

The best title for this passage would be ______

A．Human Space Exploration
B．A New Craft Would Replace Shuttles
C．Space Launch Initiative
D．Orbital Space Plane
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单项选择题
The design of the orbiter indicates ______
A．NASA's determination to continue space exploration.
B．NASA's disadvantage in space technology.
C．the great pressure from Congress on NASA.
D．a heavy defeat for NAS
单项选择题
NASA plans to design the new space craft to ______
A．control the International Space Station.
B．carry astronauts to the International Space Station.
C．transport equipment to the International Space Station
D．train astronauts in space flights.
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