世界银行在1968年的贷款项目为62个，贷款总额为9．5亿美元；1981年贷款项目为266个，贷款总额为124亿美元。出现这一变化是因为（  ）

    Hi, my name is Sam. I have a big family. Charles is my father and Janet is my mother. I have two sisters. My sister Sara is 16. Anna is 14. I'm the youngest in my family. I'm 11.

    Hi, my name is Charles. My parents are Paul and Susan. I have one brother and one sister. Gary is my brother's son. My sister Laura has two daughters. They are Dina and Kate.

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真爱自然，保护环境是大人们的事，与我们小学生没关系。