No, English is not my first language. In practice communism is whatever the communists are doing. If the original definitions are no longer applicable, then those can be redefined by succeeding practitioners. For instance Newton derived his clockwork universe from scientific principles. Later, Einstein determined the clockwork universe was incorrect and the principles had to be changed to reflect the contemporary reality. Would you accuse Einstein as being unscientific because he violated Newton's scientific principles ? Likewise, you should not accuse the Chinese communists as being non-communist because they found better and successful ways for communism. As long as communism retains scientific thinking as its pillar, it can be improved and renewed as necessary, just like science.
CPC does refer to communism. The first C is Communist. Like it or not, the 056 is very much a fruit of communism.
You obviously have no clue what "scientific principles" mean to spout such nonsense. Einstein did not "violate Newton's scientific principles", as Newton did not create any scientific principles to begin with. Newton created a theory of physics, and Einstein's mathematic models expanded that theory. Einstein used the same mathematical principles as Newton to develop his theory of relativity.
Note that I said
MATHEMATICAL principles, not "scientific". Scientific principles requires the observation of experimental data, which Einstein was unable to do. It was only through the work of later scientists that his theory of relativity was confirmed.
Honestly, I'm not surprised at your statement. The Chinese education system does a very poor job of teaching what the "scientific method" is, and Chinese media routinely abuses the term "scientific" as a buzzword for trustworthiness.
And no, just because the ruling party of China calls themselves "communist", does not mean everything they do is "communism". If Hu Jintao goes to take a crap, does that make the act of crapping a part of communism?
Finally, the CPC does not have "scientific thinking as its pillar". Economics is not a science. The word you're looking for is "rational".