| 1. | No . of pig urine samples taken for testing of beta - agonists 为测试乙类促效剂而抽取的猪只 |
| 2. | List b of maintenance information system and infrastructure support 维修保养资料系统乙类清单 |
| 3. | To test pigs for beta - agonists 检验猪只有否含乙类促效剂 |
| 4. | No . of pig urine samples collected for testing of beta - agonists in 2001 二一年测试乙类促效剂的猪只尿液样本数目 |
| 5. | No . of pig urine samples collected for testing of beta - agonists in 2002 二零零二年测试乙类促效剂的猪只尿液样本数目 |
| 6. | Category b notifiable disease 乙类传染病 |
| 7. | Products used in agriculture . determination of nitrogen content in class b nitrogenous fertilizers 家用产品.乙类氮肥.氮含量的测定 |
| 8. | Category b officer 乙类人员 |
| 9. | Class b telephone 乙类电话 |
| 10. | Request to convert model scale 1 category b officers into category a officers 有关要求将第一标准薪级公务员由乙类人员转为甲类人员的事宜 |