时间:2020-1-17
作者:Olivia
#1. What makes this number unique — 8,549,176,320? A: It contains each number, zero through nine, in alphabetical order. #2. Imagine that you are in a boat, in the middle of the sea. Suddenly, you are surrounded by hungry sharks, just waiting to feed on you. How can you put an end to this? A: […]