1999年七月至十二月，奇异变形杆菌的测试样本数目有31个。

For months July - December 1999, the number of isolates of proteus spp. tested was 31.

youdao

1999年七月至十二月，奇异变形杆菌的测试样本数目有31个。

For months July - December 1999, the number of isolates of proteus spp. tested was 31.

youdao