除去下列物质中的杂质(括号中的为杂质),所用试剂错误的是
A.A
B.B
C.C
D.D
答案:B
Bill Valley has been working for Advisors, Inc. for several years, and he just joined CFA Institute. Valley’s sister just received a large bonus in the form of stock options in Zephyr Inc, Valley’s sister knows nothing about financial assets and offers Valley a week at her holiday home each year in exchange for Valley monitoring Zephyr and the value of her stock options. In order to comply with the Code and Standards, Valley needs to inform Advisors of:()
A. the compensation in the form of the use of the holiday home only.
B. the fact his sister owns the options on Zephyr stock only.
C. both the use of the holiday home and his sister’s options.
下列对Internet的叙述最完整的是 ( )
A.不同的计算机之间的互联
B.全球范围内的所有计算机和局域网间的互联
C.用TCP/IP协议把全世界众多的局域网和广域网连在一起的一个大的计算机互联网络
D.世界范围的所有局域网通过ISO/OSI协议的互联