WTO规则的核心是()。
A.贸易自由化
B.贸易民主化
C.贸易规范化
D.管理科学化
参考答案:A
________________late, he also forgot his books.
A.Not only the boy turned up
B.Not only the boy turned out
C.Not only did the boy show out
D.Not only did the boy show up
举例分析之言“之言”的用法。