【判断题】Even though Stephen Spender is a Jew, a homosexual and an establishment figure, he wrote many famous poems and was regarded as one of the greatest poets in the 20 th century.
【单选题】The figure given below shows the production-possibility curves of Canada (AB) and the Rest of the World (CD). The pre-trade price ratio in Canada and the Rest of the World are given by the lines P 1 a...