British finance minister Rachel Reeves, facing criticism for travelling to China during financial market turmoil at home, said on Saturday that “pragmatic and predictable” relations with Beijing would help boost economic growth and trade.Under pressure from a sharp rise in British interest rates, Reeves defended her budget at the start of the two-day visit to China, where she is seeking to revive high-level economic and financial talks that have been frozen for nearly six years.“The fiscal rules that I set out in my budget in October are non-negotiable, and growth is the number…