People can find so many good things,such as useful information and lovely pictures on the Web,________ it is also a global village filled with bad things．
A.what
B.when
C.where
D.while
网友回答
D解析解析：考查连词用法。此题极易误解成用关系副词引导定语从句。实际上，句意前后构成对比关系，因而选择while,while引导状语从句。