印度中央银行的首席经济学家兼首席顾问，蜚声国际的纳林德·贾达夫博士曾开玩笑说：“我来自印度种姓制度中最低贱的等级，但我突破了种姓制度的所有藩篱。”如果根据种姓制度的划分，纳林德·贾达夫博士在古代印度应属于(   )

填上合适的词语

____的歌           ____的歌

____的气味         ____的气味

____的秋天         ____的秋天

____的衣裳         ____的衣裳

“北京时间”不是（   ）

小明用三根相同的无锈铁钉进行铁制品锈蚀条件的探究（如图），一周后观察．下列说法错误的是（　　）

根据短文内容，选择正确答案。

   Mike is seven years old now and begins(开始) to go to school. His father is a driver and takes him to school in his car. Mike studies very hard(努力地) and all his teachers like him very  much.
   One day, Miss White teaches the students to count from one to ten. Mike can count them. Miss White is happy and asks him, “How many people(人) are there(有) in your family, Mike?”
“Two, Miss White, ” Mike says.
“Who are they?”
“My father and mother.”
“Oh?” Miss White is surprised(吃惊地). She says, “But I think there are three people in your family—your father, your mother and you. Am I right?”
“No. I'm not at home now. I'm at school, you know!” Mike says.