按照《建筑安装工程费用项目组成》(建标[2013]44号)的规定,下列费用中不属于企业管理费的是()。
A.投标费
B.业务招待费
C.履约担保
D.材料的采购及保管费
参考答案:D
My friend told me it would be months _________ his family settled down in that city.
A.after
B.since
C.before
D.when
产前检查应从下列哪一时间开始最好
A.妊娠6周B.妊娠8周C.确诊早孕时D.妊娠12周E.妊娠20周