题干
—Will you join us for lunch?
—________.
A：No, I don't
B：Yes, with pleasure
C：No, help yourself
D：Yes, please
答案(点此获取答案解析）
B
—Will you join us for lunch?
—________.
A：No, I don't
B：Yes, with pleasure
C：No, help yourself
D：Yes, please
，称Tn为数列a1,a2,…,an的“理想数”.已知a1,a2,…,a500的“理想数”为1002，那么数列3,a1,a2,….a500的“理想数”为（ ）