____ four years since I joined the Army.
A.There was
B.There is
C.It was
D.It is
答案:D
( )应当作为招股说明书的备查文件,在中国证监会指定的网站上披露。
A.保荐人出具的发行保荐书
B.证券服务机构出具的有关文件
C.发行人申请文件
D.公司财务报告
煤气柜为()级危险源点。