【简答题】阅读理解。 Clothes are important and necessary to us, but do you know how to choose suitable clothes in a correct way? Here are some ideas for you. When you go shopping and want to buy some clothes, you sh...
【单选题】A certain lab experiments with white and brown mice only. In one experiment, 2/3 of the mice are white. If there are 13 brown mice in the experiment, how many mice in total are in the experiment?