从目前实施状况来看,我国社会救助资金主要有以下哪些来源?()
A.国家财政负担
B.企业积累基金
C.各类帮困基金
D.各类慈善基金
参考答案:A, C, D
----Would you like to watch the three-D film Titanic with me ?
----Certainly. I don’t mind seeing it again although I ______________ it twice.
A.saw
B.was seen
C.have seen
D.had seen
______ 是人体内的备用能源,______是人体内含量最多的物质.