卫生类职称英语考试语法：

1.世纪

the sixth（6th）century

the eighteenth（18th）century

the 1900s

the 1600s

2.年代

in the 1930s

in the 1860s

3. 表示某年代的早期、中期和晚期，可以在定冠词后，年代前添加 early，mid-，late

in the early 1920s

in the mid-1950s

4.年月日表示法

January, February, March, April, May, June, July, August, September, October, November, December

On Oct. 15, 1949

In Dec. 1902