A.
6 ~ 8 周 prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
B.
10 ~ 11 周 prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
C.
6 ~ 8 个月 prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
D.
8 ~ 9 个月 prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>
E.
4 ~ 5 个月 prefix="o" ns="urn:schemas-microsoft-com:office:office"? ?xml:namespace>