Question 1:C

Question 2: A.

Question 1: test analysis: from the perspective of transaction type, borrowing books belongs to rental consumption, not to monetary commodity consumption, excluding B. If divided by product type, borrowing books icon belongs to tangible commodity consumption, not to labor consumption, excluding A. From the perspective of consumption purpose, it belongs to developing data consumption, not to enjoying data consumption, excluding D. The correct answer is C.

Question 2: Analysis of the test questions: The statement of "everyone" in B is too absolute, excluding mistake C, because book consumption belongs to the consumption of development materials, so the book market is hot, indicating that the living standard has improved. At this time, Engel's coefficient has been reduced, and D is wrong, because if the book audio-visual market is in the seller's market, the supply exceeds the demand, which is inconsistent with the meaning of the question. The correct answer is a.

Comments: There are three types of consumption, which are divided into tangible goods consumption and labor consumption according to product types, and monetary goods consumption, loan consumption and rental consumption according to transaction methods; According to the purpose of consumption, it is divided into production materials consumption, development of consumption materials and enjoyment of consumption materials. It is necessary to remember accurately and not to be confused. Engel coefficient increases, living standard decreases, Engel coefficient decreases and living standard improves. Be careful not to make the wrong choice because of the mentality when doing the problem.