A、They are tea cups. B、They are tea tray. C、They are white. D、They are 120yuan.
A.生活型茶藝B.營業(yè)型茶藝C.表演型茶藝D.養(yǎng)生型茶藝
A.兒茶素 B.黃酮類化合物 C.咖啡堿 D.花青素和酚酸類