找出下列单词中划线部分读音与其余三个不同的一项。
( ) 1. A. dear B. bear C. near D. ear
( ) 2. A. breakfast B. tea C. sea D. mean
( ) 3. A. morning B. or C. work D. forty
( ) 4. A. window B. know C. yellow D. how
( ) 5. A. egg B. bed C. excuse D. desk
( ) 6. A. class B. grass C. pass D. as