两条对角线相等的平行四边形一定是( )
A.矩形
B.菱形
C.矩形或正方形
D.正方形
因为对角线相等的平行四边形是矩形.
故选:A.
(2009)某房地产的土地使用年限为50年,至今已使用了8年,预计该房地产正常情况下每年有效毛收入为30万元,年运营费用为12万元。假设该房地产的报酬率为9%,则其收益价格为()万元。
A.194.64
B.197.31
C.324.40
D.328.69
—How do you find Qingdao, Mary?
—It's a beautiful seaside city. I have________ it for my next holiday. [ ]
A. decided on
B. tried on
C. taken on
D. carried on