China giant core technology benefits electronic material localization 2. Open securities investment account In November, AdDuplex released its November Surface device share data, where the Surface Pro 4 is currently the most popular product, accounting for 39.7% of Surface devices. The newly released Surface Pro(2017) accounts for 9.2%, roughly the total of the Surface Book(7.5%) and the Surface Laptop (2.0%). 5. Accounting earnings depend on the reasonable proportion of income and expenses during the period. Costs that are not associated with the current period should be incurred as assets to be transferred for later periods.