下列命题中，正确的是（ ）

What would you like in dinner?  ____

下面三个电学实验：a、探究电流与电压的关系；b、探究电流与电阻的关系；c、伏安法测电阻都要用到滑动变阻器，关于滑动变阻器，下列说法错误的是（　　）

    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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