【简答题】
A、elect * From Emp Where HirDate>=39;1981-1-139; And HirDate <=39;1981-12-3139; B、Select * From Emp Where Between In 39;1981-1-139; And <39;1981-12-3139; C、Select * From Emp Where Between In 39;1981-12-3139; And <39;1981-1-139; D、Select * From Emp Where HirDate>=39;1981-1-139; NOT HirDate <=39;1981-12-3139;