题目内容
There are many kinds of birds in Australia, and over 140 species of snakes, many of ________ are extremely dangerous.
[ ]
A.them
B.which
C.what
D.those
答案:B
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题目内容
There are many kinds of birds in Australia, and over 140 species of snakes, many of ________ are extremely dangerous.
A.them
B.which
C.what
D.those