There are many kinds of birds in Australia, and over 140 species of snakes, are extremely dangerous.
A. many of those
B. many of that
C. many of which
D. many of what
网友回答
A. many of those
B. many of that
(答案→)C. many of which
D. many of what
解析：考查非限制性定语从句，先行词是snakes，用many of which引导定语从句，句意是：在澳大利亚有很多种鸟，和140多种蛇，其中很多是很危险的。选C。