【简答题】海洋是一个巨大的资源宝库,合理开发海洋资源对于实现可持续发展具有重要的战略意义。盐卤中除含有Mg 2+ 、Cl - 外,还含有少量Na + 、Fe 2+ 、Fe 3+ 、SO 4 2- 和CO(NH 2 ) 2 等。从海水提取食盐和Br 2 以后的盐卤中可以提取MgCl 2 、MgO、Mg(OH) 2 等物质,流程如下图所示 请回答下列问题: (1)从MgCl 2 溶液得到MgCl 2 ·6H 2...
【单选题】Which of the following parties advocates the independence of Quebec?
D.
Conservative Party of Canada.
【单选题】Which of the following parties represents the most interests of Quebec?
B.
The Progressive Party.
【单选题】Which of the following statements about a trade bloc is accurate?
A.
a. The gains from a trade bloc are shared equally by each member.
B.
b. Increased competition within a trade bloc can result in higher commodity prices in the domestic markets of the member countries.
C.
c. A trade bloc may lower firms’ costs by allowing them to exploit economies of scale.
D.
d. A trade bloc can increase the opportunities for domestic business investments but usually repels foreign direct investments into the member countries.
【判断题】The Cold War era refers to a period when there was no real war between the Western Bloc and East Bloc.
【多选题】中国古代四大神话传说,除了女娲补天,还有哪些?