口炎和发热可导致口腔湿度下降。
A. 对
B. 错
Suppose that Mexico and Canada form a free-trade area. Mexicans then decrease auto manufacturing and increase imports of autos from Canada, while the Canadians decrease computer production and import more computers from Mexico. This is an example of:
A. Trade diversion
B. Trade creation
C. Trade destruction
D. Trade exhaustion
If a customs union includes the low-cost supplier of the world, there would be no adverse trade-diversion effect that would counteract the positive trade-creation effect.
A. 对
B. 错
中国共产党的领导是中国特色社会主义最本质的特征,这是()以来习近平提出的一个重要论断。
A. 十六大
B. 十七大
C. 十八大
D. 十九大