ActiveAndroid中的多参数

我在我的项目中使用ActiveAndroid作为ORM系统,我使用这行代码进行Query over database

 List s = new Select()
                .from(Chats.class)
                .where(col_conversation + " = ?  and " + col_sender + " = ? and " + col_body + " = ?",conversation.getId(),sender.getId(),body)    .execute();

但它获取0行作为结果.我确信我在数据库中有这样的行.

另一种方法是使用几个where子句来执行多参数查询:

List s = new Select()
            .from(Chats.class)
            .where(col_conversation + " = ?",conversation.getId())
            .where(col_sender + " = ?", sender.getId())
            .where(body + " = ?", body)
            .execute();