The man likes giraffes _____ they are very interesting.
If Daisy has only 55 yuan, she can enjoy the activity in _____ on June 28th.
溶酶体具有细胞内消化功能,其内部水解酶的最适pH在5.0左右,下列叙述错误的是( )
世界上最大的河流和最长的河流分别是( )