A.帶缺口的小口杯狀的審評(píng)杯 B.紫砂壺 C.蓋碗杯 D.玻璃杯
A.小于6 B.大于6 C.達(dá)到7 D.大于7.5
A.0.1ppm B.0.2ppm C.0.5ppm D.1ppm