同一生物体内，遗传物质不完全相同的细胞可能是（　　）

长江被称为“黄金水道”，这是因为它（    ）

选词填空。

    Deng Feng is my friend．He is____and interested in music．He usually gets up at 6：00 in the morning and then he does some____in the park．He likes to listen to____music When exercising．Before going to bed，he listens to some____of light music．Sometimes he'd like to enjoy traditional Chinese music．He____it's a good way to relax．Some day,he will study music and be a musician．