The use of robots increases__________ 查看材料
A. too much energy
B. based on American designs
C. they are too costly
D. they are not reliable
E. quality control
F. free of charge
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The best title for the passage might be__________ 查看材料
A. Life at Home in the Year 2040
B. Sensors and Computers
C. The Development of Science and Technology
D. Lights and Heaters in the Year 2040
An international treaty signed several years ago bans trade in plants and animals of endangered species.
A. forbids
B. eliminates
C. promotes
D. protects
People of diverse backgrounds now fly to distant places for pleasure, business or education.
A. different
B. distinctive
C. similar
D. separated
The recent findings are also applicable to other areas of design engineering.
A. practical
B. relevant
C. convenient
D. comparable