单选题 Public reports by national commissions, governors' conferences, and leadership groups have stressed the great need for better understanding of international affairs by the citizenry. If the country is to remain a leading nation in an era of international competitiveness, the need is undeniable. If there is such a need for the citizenry to have a better understanding of international affairs, then all of our new teachers must be prepared to teach their subject matter with an international orientation.
If all of the statements in the passage are true, which one of the following must also be true?

A、 If the country is to remain a leading nation in an era of international competitiveness, then new teachers must be prepared to teach their subject matter with an international orientation.
B、 If new teachers are prepared to teach their subject matter with an international orientation, then the country will remain a leading nation in an era of international competitiveness.
C、 If there is better understanding of international affairs by the citizenry, then the country will remain a leading nation in an era of international competitiveness.
D、 If the country is to remain a leading nation in an era of international competitiveness, then there is no need for the citizenry to have a better understanding of international affairs.
E、 (E) Public reports from various groups and commissions have stressed the need for a more international orientation in the education of teachers.

【正确答案】 A

【答案解析】[解析] 本题的逻辑关系是：①一个国家要在国际竞争时代保持主导地位→②该国的公民必须对国际事务有较好的理解→③新教师必须按国际方向来准备和教授他们的课程。由上述可得到①→③成立，即(A)为正确答案；(B)和(C)分别是①→③和①→②的逆命题，所以都不是正确的选项；(D)是对短文中①→②的否定，因此也是不正确的；(E)错在不同机构和委员会所做的公众报告并没有强调在培训教师过程中加强国际方向性的必要，它们只是暗示了这种必要性。