房地产开发成本金额为( )万元。
A.450
B.550
C.615
D.600
参考答案:C
解析:30+15+450+100+20=615(万元)
My father always warns me that there is no such thing as a free lunch because we can’t get _________ for nothing.
A.something
B.everything
C.anything
D.nothing
如果商品是以信用证方式购买,其所有权在交货后转让