Focused ultrasound knife uses high-intensity focused ultrasound, that is, high energy ultrasound.

Which statement as follows is right? A: The potential equals everywhere the magnitude of electric field intensity is equal. B: The magnitude of electric field intensity equals everywhere the potential is equal. C: The potential must be high where the magnitude of electric field intensity is great. D: The potential is not necessarily zero where the magnitude of electric field equals zero.

The sounds that make people feel pleasant are ( ) A: High intensity sound B: Low-pitched voice C: Sounds in the human auditory comfort zone D: All voices

High machining accuracy,( ), high automation, low labor intensity and high production efficiency are the machining characteristics of CNC machine tools. A: Machining parts with simple contour and mass production B: Strong adaptability to processing objects C: A single piece of parts which is difficult to fit or must rely on manual correction and positioning in order to machining accuracy. D: Suitable for machining billet with special large allowance and uneven material and allowance.

In the following structure, which ones are required to take into account of vertical earthquake action by China design code? A: the larger-span structure in Intensity 8 or 9 zone B: the long-cantilever component in Intensity 8 or 9 zone C: Towering structure in Intensity 8 or 9 zone D: the high-rise structure in Intensity 9 zone

What’s the Chinese for “harmonious intensity and intense harmony”?

The intensity of line sink is negative and that of line source is positive.

—“Is shopping there expensive?” A: so high to B: as high to C: so high as D: as high as

This statue stands just ______ as that one. A: the same high B: so high C: as high D: high

Magnetic Flux Density B is a vector. While Magnetic Field Intensity H is not a vector.