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

問題詳情：

       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

知識點：介詞

題型：選擇題