which tolls is used for planing for Micro wave Within PaO？（）
举一反三
- micro wave的汉语是 A: 光纤 B: 微波
- Which kind of security is more complicated A: security used to send credit card data B: security used in Webs C: security used within the company
- In a ( ), the oscillations are perpendicular to the direction in which the wave travels. An example is a wave on a string. A: transverse wave B: longitudinal wave
- . Which of the following wave lengths should general na.rigational radar for receiving SART signals be used? A: 3cm B: 9cm C: 10cm D: 5cm
- Seismic waves include P wave, S wave, Rayleigh wave and Love wave, of which the fastest is P wave.