No. 1 11,

No. 12: 12,

No. 13: 13.

The numerical date of the extended data is written by ordinal number, and the following is the writing of ordinal number 1-3 1 and its abbreviations:

No. 1 first (1 first)

second time

Third session

The fourth time (fourth time)

Fifth session

Sixth session

Seventh session

The eighth (eighth)

Ninth session

10 day (10 day)

No. 1 1 (No.1 1)

No.65438+12, No.12 (12)

Article 13 ofNo. 13 (No.13)

Article 14 ofNo. 65438+ 14 (No.14)

Article 15 ofNo. 65438+ 15 (15)

Article 16 ofNo. 65438+ 16 (16)

Article 17 ofNo. 65438+ 17 (17)

No. 18 (No.18)

Article 19 ofNo. 65438+ 19 (No.19)

Twentieth session

21t21 (2 1st)

The 22nd session (22nd session)

The 23rd session

The 24th Session (24th Session)

The 25th session

The 26th session

The 27th session

The 28th session

Twenty-ninth session

Thirtieth session (30th)

No.3 1 No.31(31ST)

References:

Baidu encyclopedia-ordinal number