Only one at a time. Only other radio that works as you describe would be the Kenwood radios. Very expensive, but can do what you are looking for.
The Wouxun page above shows that is does actually receive two at the same time:
Dual Receive
Allows reception of two channels at the same time (V+V, U+U, V+U)
Digital DMR and Analog
Features both DMR digital and analog FM modes on any channel
Color TFT DisplayFeatures both DMR digital and analog FM modes on any channel
Large 1.77 inch color TFT screen for great Day or Night operation with Dual or Single Channel display
High Power Output
6.0W, 4.0W, 2.5W, 1.0W selectable TX power output.
6.0W, 4.0W, 2.5W, 1.0W selectable TX power output.
2 & 5 Tone Paging
Includes built-in 2 Tone and 5 Tone Paging feature
Includes built-in 2 Tone and 5 Tone Paging feature