六西格玛的表示符号是()。
A、6σ
B、6Σ
C、6δ
D、6α
参考答案:A
龙是中国古代劳动人民()、()出的独特艺术形象。
We would like to express our satisfaction receiving the first order and prompt shipment of the goods.
A.to, confirm
B.with, confirming
C.at, confirm
D.in, confirming