某商品进价是200元，销售价是250元，此商品的利润率是[ ]
A.20%
B.25%
C.80%
D.125%
答案：B
Granny read newspaper every day in her sixties _____ she could keep herself informed of the latest news.
A．so that
B．in case
C．even though
D．as if
Dg50Pg16的法兰，其中Dg表示（）。
A.公称压力
B.工作压力
C.公称直径
