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【判断题】
航空适宜运送价值高、体积小、送达时效要求高的特殊货物。( )A.
正确
B.
错误
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举一反三
【单选题】2-1. What is the size of fibers that in our cloth?
A.
millimeter
B.
micrometer
C.
nanometer
【单选题】According to the passage, what is currently being debated?
A.
Whether substances behave differently at the nanometer scale.
B.
Whether nanosurgeons should be used in hospitals.
C.
Whether some nanoproducts should be taken off the market.
D.
Whether researchers should develop products using nanoparticles.
【简答题】由均匀平面波的传播方向与分界面法线所构成的平面，称之为（）。
【简答题】Though “nanometer” is now a fashionable term all over the world,few people know exactly what it is.It has become a new favorite of manufacturers and sellers in recent years.Many “high-tech” products b...
【简答题】What is nanometer?
【简答题】Though “nanometer”（纳米） is now a fashionable term all over the world, few people know exactly what it is. It has become a new favorite of manufacturers and sellers in recent years.Many “high-tech” prod...
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