她是我的姐妹。
____is my ____.
山东省某汽车公司经销商代表相聚在烟台福山SOS儿童村,现场捐赠50台热水器。这些捐赠的热水器( )
Though he started late, Mr.Guo played the piano as well as, if________, Miss Liu.
What colour is the nose?
人的生殖细胞、体细胞、受精卵中染色体的数目分别为