What difficulties will inspire you

Trouble can you what gift?Want to know the answer, quick to do a small test!

【 title 】

Save up for a long time, you've finally opened a belongs to own bookstore.The bookstore has a total of four big bookshelf, you put the books in the bookstore is divided into four categories, respectively in four rows of shelves.These are the "social sciences books, literature books, B C teaching counseling books, reference books, and D.The four row of bookshelf how to put?

Here are four ways of sorting, by the four row of bookshelf after taking the door of the order of customers look up, the first to be customers see a bookshelf in the front, the remaining rows of bookshelves line behind.Please select one of the most close to your idea.Please don't peep the answer before good choice.

1.1A—2B—3C—4D

2.1B—2C—3D—4A

3.1C—2D—3B—4A

4.1D—2A—3C—4B

Really want to know the answer?Don't worry about oh, your answer for you right away!

Test results to see the next page: