以下属于有性生殖的是( )
A.葡萄的扦插
B.用小麦种子繁殖
C.苹果的嫁接
D.用马铃薯的块茎繁殖
答案:B
We study in a school ____ fame is known nationwide and it is a school _______ we can fully develop our potential(潜能).
A.which; where
B.whose; which
C.who; that
D.whose; in which
t℃时,19.35克氯化铵饱和溶液与45克硝酸银溶液恰好完全反应,生成氯化银14.35克.
求:(1)t℃时氯化铵的溶解度;
(2)将氯化银过滤后,所得滤液中溶质的质量分数.