在下列四个周期中,( )的财务风险最高。
A.起步期
B.成长期
C.成熟期
D.衰退期
参考答案:D
解析: 衰退期的财务风险是最高的,然后依次是:成熟期、成长期、起步期。
I feel it is Jack as well as his wife that _______ for their son’s bad performance at school.
A.are to blame
B.is to be blamed
C.are to be blamed
D.is to blame
姜黄素分光光度法测定水中硼时,对配制试剂用水有什么要求?