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更多“无人工厂（Unmanned Factory)又叫自动化工厂、…”相关的问题
Bush’s citing of the achievements of space exploration is mentioned
A．to show unmanned science will be much affected by manned space travel.
B．to demonstrate the reprogramming of NASA’s budget into Mars effort is affordable.
C．to display accomplishments will be made by automated probes.
D．to stress space exploration is and will always be America’s first priority.
In paragraph 3, the author focuses on the factor of ______.
A．pressures related to tests
B．advanced technologies
C．sophistication of students
D．standardized tests
The key factor contributing to the downturn of American suburban real estate is______.
A．crisis of loan
B．excessive home construction
C．buyers' inclination to live in an urban area
D．the constant rise of fuel prices
