铸造卡环宽度与厚度的比例为
A.3:1B.3:2C.5:3D.5:4E.2:1
参考答案:D
Her sister ______ a rich man. They ______ for twenty years.
A.married with; have married
B.married to; have married
C.married; have been married
D.has married with; have been married