The web is fantastic at many things, e-mail, e-merce, for example. But your name is Amazon Or Google, making money has proved hard.
A. if
B. although
C. unless
D. as
网友回答
A. if
B. although
(答案→)C. unless
D. as
解析：四个选项分别表示如果、尽管、除非和由于。根据题意，网络赚钱已经被证明是很难的，除非你的名字是亚马逊或者谷歌。故选C。