资讯

Any number above zero is a positive number. Positive numbers are written with no sign or a '\({+}\)' sign in front of them and they are counted up from zero to the right on a number line.
[6] Observing a weak arm drifting downward as a whole rather than in a pronation movement [6,7] has thus been seen as a functional 'positive sign' but its clinical value has never been formally ...