July29,2014,JuXiao,thepandamom,gavebirthtothreepa...

问题详情：

       July 29, 2014, Ju Xiao, the panda mom, gave birth to three panda babies in Guangzhou Chimelong Safari Park. They are known     the world's only surviving giant panda triplets(三胞胎).

A. On; for             B. On; as                   C. In; as                D. In; for

【回答】

B

知识点：介词

题型：选择题