Microsoft's Surface Pro, Surface Laptop, Surface Book and Surface Studio are the main products of Microsoft's Surface series, but there is a clear difference in the share of the devices. The Surface Pro products account for the highest share (79.9%), the Surface Book (7.5%), Surface Laptop (2.0%), and Surface Studio (0.2%). Someone asked: "is value subjective or objective?" In fact, the formulation of this question does not accord with dialectical materialism. Because if that value is an objective rather than subjective, which he said is equal to the value only from the objective existence of its form, without subjective reflection of form and at the same time, the or value of the objective things can't be human understanding, that an agnostic mire; On the contrary, if think value is subjective, not objective, it is said that only a reflection of its subjective value form, rather than the form of the objective and at the same time, the value is entirely subjective since birth, not the reflection of objective things, which in turn into a mire of idealism. The high yield p2p wealth management products know the above mentioned above, and also know that the domestic p2p financing market is not sound enough, so there is a certain risk in the p2p financing investment. How to choose investment platform, how to determine the security of P2P wealth management products, its complexity is also greatly increased. So be cautious as investors. Today, being in the blockchain is like engaging in more grandiose and socially valuable activities. That is why blockchain is emerging, many of which are sold out, and for many, the line between personal and professional interests is becoming blurred. After the black Friday rush, consumer spending is being squeezed.