It's impossible to say for sure whether a plasmid that can replicate in both *E. coli* and *Pseudomonas* is a high-copy number plasmid based solely on that information. Here's why:

* Copy number varies greatly: Plasmids can have a wide range of copy numbers, from just a few copies per cell to hundreds or even thousands.

* Host-dependent: The copy number of a plasmid is often dependent on the host organism. A plasmid may have a high copy number in *E. coli* but a lower copy number in *Pseudomonas* or vice versa.

* Plasmid-specific: The copy number is ultimately determined by the specific plasmid's replication origin and other regulatory elements.

To determine if a plasmid is high copy number, you would need additional information:

* Replication origin: The specific sequence responsible for initiating replication.

* Replication control elements: These control how many copies of the plasmid are made per cell cycle.

* Experimental determination: Measuring the plasmid copy number in each host organism.

In summary:

While it's possible for a plasmid to have a high copy number in both *E. coli* and *Pseudomonas*, it's not guaranteed. More information is needed to determine the copy number of a specific plasmid.