【单选题】If the FDI is a substitute for imports of goods or services, the effect can be to improve the _____ of the host country's balance of payments. 如果外国直接投资是商品或服务进口的替代,其效果可以是改善东道国( )子账户国际收支状况。
【单选题】听力原文: Right up to the 19th century. (32)Oxford and Cambridge were the only two universities in England. Royal patronage and aristocratic money confirmed them in their position, and attempts to found n...
A.
Because there were not enough students enrolled in more than one university.
B.
Because Oxford and Cambridge were the most important cities.
C.
Because only Oxford and Cambridge were supported by royal patronage.
D.
Because Parliament only supported Oxford and Cambridge.
【简答题】乙酸乙酯是重要的化工原料。实验室合成乙酸乙酯的装置如下图所示。 有关数据及副反应: 副反应: C 2 H 5 OH+C 2 H 5 OH C 2 H 5 OC 2 H 5 +H 2 O 请回答下列问题: (1)在大试管A中添加的试剂有6 mL乙醇、4 mL乙酸和4 mL浓硫酸,这三种试剂的添加顺序依次为 _______、_______ 、_______ (2)试管B中导管接近液面未伸入液面下的...