题干
这儿有一个生日蛋糕给你。可以说：
A：Here's a birthday cake for you.
B：Here's a card for you.
答案(点此获取答案解析）
A
这儿有一个生日蛋糕给你。可以说：
A：Here's a birthday cake for you.
B：Here's a card for you.
，若
则此数列中绝对值最小的项为（ ）