AUD/USD hits 0.6737 after extending north from 0.6681 (Monday's low)

0.6737 is highest level since Friday (0.6808 was Friday's seven-week peak)

Ascent to 0.6737 spurred by hawkish RBA minutes and China Q1 GDP beat

AUD is often used as liquid proxy for yuan. Iron ore gains also lift AUD

See: nL4N36L0DX. Iron ore is Australia's biggest export earner

AUD/USD offers are tipped ahead of 0.6750 (200-day moving average)