【单选题】Choose a better version of paraphrase of the following sentence. And it is an activity only of human.
A.
And it is an activity which is only of humans
B.
And conversation is an activity that can only be done by human beings.
C.
And conversation is a human activity.
【单选题】The de Broglie wavelength of an electron with kinetic energy of 100 keV is ( )
【单选题】It has been predicted that AI can replace human in every activity in ________.
【单选题】A rise in human sympathetic vasomotor fibre activity
A.
enhances local blood flow through a tissue
B.
increases the capillary filtration rate
C.
can raise arterial blood pressure
【单选题】Packaging is an activity closely associated with the revolution of society and , can be __ to human beginning .
【单选题】The average wavelength of visible light is2,000 times ______ the diameter of an atom.
【单选题】The wavelength of a standing wave in an open basin is ( ) the length of the basin.