The appreciation of RMB exchange rate has brought benefits to China: ① the cost of studying abroad or traveling will be less than before; (2) the price of imported cars or other imported products.

Analysis of test questions: This question examines the influence of RMB exchange rate changes. Is RMB appreciation beneficial to imports? Therefore, the cost of traveling abroad and buying a car has decreased, so ① ② conforms to the meaning of the question, ③ is wrong, the cost of foreign investment has increased, ③ is wrong, the appreciation of RMB is not conducive to exports, and the competitiveness of export enterprises has weakened, so the answer should be A.

Comments: The impact of RMB appreciation on China's economic development. Advantages: RMB appreciation can make the money in the hands of ordinary people more valuable, and more foreign goods can be purchased with the same amount of RMB; Can reduce the pressure of China's foreign debt; The enhancement of the international purchasing power of RMB is conducive to expanding imports and improving the international status of RMB. Disadvantages: RMB appreciation will reduce exports and increase imports, which will have an adverse impact on the balance of payments; The deterioration of foreign trade environment, capital outflow and increased unemployment are not conducive to expanding domestic demand and sustainable economic development. The difficulty is moderate.