How tiny is one battery part? 查看材料
A. Its width is one tenth of a hair.
B. It equals the width of a hair.
C. It is as thin as a piece of paper.
D. Its width is too tiny to measure.
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回答(53)题 查看材料
A. answer
B. effect
C. disease
D. study.
__________ 查看材料
A. name
B. treat
C. divide
D. identify
You can connect a wire to the positive and negative ends of a battery __________.
A. to develop a maglev train rail system
B. to explain why maglev trains are faster
C. to pull and push the train forward
D. to create a magnetic field
E. to experiment with the maglev train
F. to travel from Paris to Rome in about two hours
品牌向上延伸指原有核心品牌跨越不同的行业,覆盖不同品类的延展。()